31368960

素因数分解:

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

素因数の和:423

約数の個数: 216

約数和(自身を含む): 124356960

約数和(自身を除く): 92988000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 389, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 778, 840, 896, 960, 1008, 1120, 1152, 1167, 1260, 1280, 1344, 1440, 1556, 1680, 1792, 1920, 1945, 2016, 2240, 2304, 2334, 2520, 2688, 2723, 2880, 3112, 3360, 3501, 3840, 3890, 4032, 4480, 4668, 5040, 5376, 5446, 5760, 5835, 6224, 6720, 7002, 7780, 8064, 8169, 8960, 9336, 10080, 10892, 11520, 11670, 12448, 13440, 13615, 14004, 15560, 16128, 16338, 17505, 18672, 20160, 21784, 23340, 24507, 24896, 26880, 27230, 28008, 31120, 32676, 35010, 37344, 40320, 40845, 43568, 46680, 49014, 49792, 54460, 56016, 62240, 65352, 70020, 74688, 80640, 81690, 87136, 93360, 98028, 99584, 108920, 112032, 122535, 124480, 130704, 140040, 149376, 163380, 174272, 186720, 196056, 217840, 224064, 245070, 248960, 261408, 280080, 298752, 326760, 348544, 373440, 392112, 435680, 448128, 490140, 497920, 522816, 560160, 653520, 697088, 746880, 784224, 871360, 896256, 980280, 1045632, 1120320, 1307040, 1493760, 1568448, 1742720, 1960560, 2091264, 2240640, 2614080, 3136896, 3485440, 3921120, 4481280, 5228160, 6273792, 7842240, 10456320, 15684480, 31368960]

約数ペア:

[(1, 31368960), (2, 15684480), (3, 10456320), (4, 7842240), (5, 6273792), (6, 5228160), (7, 4481280), (8, 3921120), (9, 3485440), (10, 3136896), (12, 2614080), (14, 2240640), (15, 2091264), (16, 1960560), (18, 1742720), (20, 1568448), (21, 1493760), (24, 1307040), (28, 1120320), (30, 1045632), (32, 980280), (35, 896256), (36, 871360), (40, 784224), (42, 746880), (45, 697088), (48, 653520), (56, 560160), (60, 522816), (63, 497920), (64, 490140), (70, 448128), (72, 435680), (80, 392112), (84, 373440), (90, 348544), (96, 326760), (105, 298752), (112, 280080), (120, 261408), (126, 248960), (128, 245070), (140, 224064), (144, 217840), (160, 196056), (168, 186720), (180, 174272), (192, 163380), (210, 149376), (224, 140040), (240, 130704), (252, 124480), (256, 122535), (280, 112032), (288, 108920), (315, 99584), (320, 98028), (336, 93360), (360, 87136), (384, 81690), (389, 80640), (420, 74688), (448, 70020), (480, 65352), (504, 62240), (560, 56016), (576, 54460), (630, 49792), (640, 49014), (672, 46680), (720, 43568), (768, 40845), (778, 40320), (840, 37344), (896, 35010), (960, 32676), (1008, 31120), (1120, 28008), (1152, 27230), (1167, 26880), (1260, 24896), (1280, 24507), (1344, 23340), (1440, 21784), (1556, 20160), (1680, 18672), (1792, 17505), (1920, 16338), (1945, 16128), (2016, 15560), (2240, 14004), (2304, 13615), (2334, 13440), (2520, 12448), (2688, 11670), (2723, 11520), (2880, 10892), (3112, 10080), (3360, 9336), (3501, 8960), (3840, 8169), (3890, 8064), (4032, 7780), (4480, 7002), (4668, 6720), (5040, 6224), (5376, 5835), (5446, 5760)]