1557995520

素因数分解:

$2^{13}\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{409}}^1$

素因数の和:474

約数の個数: 224

約数和(自身を含む): 5158679040

約数和(自身を除く): 3600683520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 32, 40, 48, 60, 62, 64, 80, 93, 96, 120, 124, 128, 155, 160, 186, 192, 240, 248, 256, 310, 320, 372, 384, 409, 465, 480, 496, 512, 620, 640, 744, 768, 818, 930, 960, 992, 1024, 1227, 1240, 1280, 1488, 1536, 1636, 1860, 1920, 1984, 2045, 2048, 2454, 2480, 2560, 2976, 3072, 3272, 3720, 3840, 3968, 4090, 4096, 4908, 4960, 5120, 5952, 6135, 6144, 6544, 7440, 7680, 7936, 8180, 8192, 9816, 9920, 10240, 11904, 12270, 12288, 12679, 13088, 14880, 15360, 15872, 16360, 19632, 19840, 20480, 23808, 24540, 24576, 25358, 26176, 29760, 30720, 31744, 32720, 38037, 39264, 39680, 40960, 47616, 49080, 50716, 52352, 59520, 61440, 63395, 63488, 65440, 76074, 78528, 79360, 95232, 98160, 101432, 104704, 119040, 122880, 126790, 126976, 130880, 152148, 157056, 158720, 190185, 190464, 196320, 202864, 209408, 238080, 253580, 253952, 261760, 304296, 314112, 317440, 380370, 380928, 392640, 405728, 418816, 476160, 507160, 523520, 608592, 628224, 634880, 760740, 761856, 785280, 811456, 837632, 952320, 1014320, 1047040, 1217184, 1256448, 1269760, 1521480, 1570560, 1622912, 1675264, 1904640, 2028640, 2094080, 2434368, 2512896, 3042960, 3141120, 3245824, 3350528, 3809280, 4057280, 4188160, 4868736, 5025792, 6085920, 6282240, 6491648, 8114560, 8376320, 9737472, 10051584, 12171840, 12564480, 12983296, 16229120, 16752640, 19474944, 24343680, 25128960, 25966592, 32458240, 38949888, 48687360, 50257920, 51933184, 64916480, 77899776, 97374720, 103866368, 129832960, 155799552, 194749440, 259665920, 311599104, 389498880, 519331840, 778997760, 1557995520]

約数ペア:

[(1, 1557995520), (2, 778997760), (3, 519331840), (4, 389498880), (5, 311599104), (6, 259665920), (8, 194749440), (10, 155799552), (12, 129832960), (15, 103866368), (16, 97374720), (20, 77899776), (24, 64916480), (30, 51933184), (31, 50257920), (32, 48687360), (40, 38949888), (48, 32458240), (60, 25966592), (62, 25128960), (64, 24343680), (80, 19474944), (93, 16752640), (96, 16229120), (120, 12983296), (124, 12564480), (128, 12171840), (155, 10051584), (160, 9737472), (186, 8376320), (192, 8114560), (240, 6491648), (248, 6282240), (256, 6085920), (310, 5025792), (320, 4868736), (372, 4188160), (384, 4057280), (409, 3809280), (465, 3350528), (480, 3245824), (496, 3141120), (512, 3042960), (620, 2512896), (640, 2434368), (744, 2094080), (768, 2028640), (818, 1904640), (930, 1675264), (960, 1622912), (992, 1570560), (1024, 1521480), (1227, 1269760), (1240, 1256448), (1280, 1217184), (1488, 1047040), (1536, 1014320), (1636, 952320), (1860, 837632), (1920, 811456), (1984, 785280), (2045, 761856), (2048, 760740), (2454, 634880), (2480, 628224), (2560, 608592), (2976, 523520), (3072, 507160), (3272, 476160), (3720, 418816), (3840, 405728), (3968, 392640), (4090, 380928), (4096, 380370), (4908, 317440), (4960, 314112), (5120, 304296), (5952, 261760), (6135, 253952), (6144, 253580), (6544, 238080), (7440, 209408), (7680, 202864), (7936, 196320), (8180, 190464), (8192, 190185), (9816, 158720), (9920, 157056), (10240, 152148), (11904, 130880), (12270, 126976), (12288, 126790), (12679, 122880), (13088, 119040), (14880, 104704), (15360, 101432), (15872, 98160), (16360, 95232), (19632, 79360), (19840, 78528), (20480, 76074), (23808, 65440), (24540, 63488), (24576, 63395), (25358, 61440), (26176, 59520), (29760, 52352), (30720, 50716), (31744, 49080), (32720, 47616), (38037, 40960), (39264, 39680)]