1557991680

素因数分解:

$2^8\times 3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{389}}^1$

素因数の和:569

約数の個数: 288

約数和(自身を含む): 5739552000

約数和(自身を除く): 4181560320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 149, 160, 168, 192, 210, 224, 240, 256, 280, 298, 320, 336, 384, 389, 420, 447, 448, 480, 560, 596, 640, 672, 745, 768, 778, 840, 894, 896, 960, 1043, 1120, 1167, 1192, 1280, 1344, 1490, 1556, 1680, 1788, 1792, 1920, 1945, 2086, 2235, 2240, 2334, 2384, 2688, 2723, 2980, 3112, 3129, 3360, 3576, 3840, 3890, 4172, 4470, 4480, 4668, 4768, 5215, 5376, 5446, 5835, 5960, 6224, 6258, 6720, 7152, 7780, 8169, 8344, 8940, 8960, 9336, 9536, 10430, 10892, 11670, 11920, 12448, 12516, 13440, 13615, 14304, 15560, 15645, 16338, 16688, 17880, 18672, 19072, 20860, 21784, 23340, 23840, 24896, 25032, 26880, 27230, 28608, 31120, 31290, 32676, 33376, 35760, 37344, 38144, 40845, 41720, 43568, 46680, 47680, 49792, 50064, 54460, 57216, 57961, 62240, 62580, 65352, 66752, 71520, 74688, 81690, 83440, 87136, 93360, 95360, 99584, 100128, 108920, 114432, 115922, 124480, 125160, 130704, 133504, 143040, 149376, 163380, 166880, 173883, 174272, 186720, 190720, 200256, 217840, 231844, 248960, 250320, 261408, 267008, 286080, 289805, 298752, 326760, 333760, 347766, 348544, 373440, 400512, 405727, 435680, 463688, 497920, 500640, 522816, 572160, 579610, 653520, 667520, 695532, 697088, 746880, 801024, 811454, 869415, 871360, 927376, 1001280, 1045632, 1159220, 1217181, 1307040, 1335040, 1391064, 1493760, 1622908, 1738830, 1742720, 1854752, 2002560, 2028635, 2091264, 2318440, 2434362, 2614080, 2782128, 3245816, 3477660, 3485440, 3709504, 4005120, 4057270, 4636880, 4868724, 5228160, 5564256, 6085905, 6491632, 6955320, 7419008, 8114540, 9273760, 9737448, 10456320, 11128512, 12171810, 12983264, 13910640, 14838016, 16229080, 18547520, 19474896, 22257024, 24343620, 25966528, 27821280, 32458160, 37095040, 38949792, 44514048, 48687240, 51933056, 55642560, 64916320, 74190080, 77899584, 97374480, 103866112, 111285120, 129832640, 155799168, 194748960, 222570240, 259665280, 311598336, 389497920, 519330560, 778995840, 1557991680]

約数ペア:

[(1, 1557991680), (2, 778995840), (3, 519330560), (4, 389497920), (5, 311598336), (6, 259665280), (7, 222570240), (8, 194748960), (10, 155799168), (12, 129832640), (14, 111285120), (15, 103866112), (16, 97374480), (20, 77899584), (21, 74190080), (24, 64916320), (28, 55642560), (30, 51933056), (32, 48687240), (35, 44514048), (40, 38949792), (42, 37095040), (48, 32458160), (56, 27821280), (60, 25966528), (64, 24343620), (70, 22257024), (80, 19474896), (84, 18547520), (96, 16229080), (105, 14838016), (112, 13910640), (120, 12983264), (128, 12171810), (140, 11128512), (149, 10456320), (160, 9737448), (168, 9273760), (192, 8114540), (210, 7419008), (224, 6955320), (240, 6491632), (256, 6085905), (280, 5564256), (298, 5228160), (320, 4868724), (336, 4636880), (384, 4057270), (389, 4005120), (420, 3709504), (447, 3485440), (448, 3477660), (480, 3245816), (560, 2782128), (596, 2614080), (640, 2434362), (672, 2318440), (745, 2091264), (768, 2028635), (778, 2002560), (840, 1854752), (894, 1742720), (896, 1738830), (960, 1622908), (1043, 1493760), (1120, 1391064), (1167, 1335040), (1192, 1307040), (1280, 1217181), (1344, 1159220), (1490, 1045632), (1556, 1001280), (1680, 927376), (1788, 871360), (1792, 869415), (1920, 811454), (1945, 801024), (2086, 746880), (2235, 697088), (2240, 695532), (2334, 667520), (2384, 653520), (2688, 579610), (2723, 572160), (2980, 522816), (3112, 500640), (3129, 497920), (3360, 463688), (3576, 435680), (3840, 405727), (3890, 400512), (4172, 373440), (4470, 348544), (4480, 347766), (4668, 333760), (4768, 326760), (5215, 298752), (5376, 289805), (5446, 286080), (5835, 267008), (5960, 261408), (6224, 250320), (6258, 248960), (6720, 231844), (7152, 217840), (7780, 200256), (8169, 190720), (8344, 186720), (8940, 174272), (8960, 173883), (9336, 166880), (9536, 163380), (10430, 149376), (10892, 143040), (11670, 133504), (11920, 130704), (12448, 125160), (12516, 124480), (13440, 115922), (13615, 114432), (14304, 108920), (15560, 100128), (15645, 99584), (16338, 95360), (16688, 93360), (17880, 87136), (18672, 83440), (19072, 81690), (20860, 74688), (21784, 71520), (23340, 66752), (23840, 65352), (24896, 62580), (25032, 62240), (26880, 57961), (27230, 57216), (28608, 54460), (31120, 50064), (31290, 49792), (32676, 47680), (33376, 46680), (35760, 43568), (37344, 41720), (38144, 40845)]