256645680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{499}}^1\times {\mathrm{2143}}^1$

素因数の和:2658

約数の個数: 80

約数和(自身を含む): 797568000

約数和(自身を除く): 540922320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 499, 998, 1497, 1996, 2143, 2495, 2994, 3992, 4286, 4990, 5988, 6429, 7485, 7984, 8572, 9980, 10715, 11976, 12858, 14970, 17144, 19960, 21430, 23952, 25716, 29940, 32145, 34288, 39920, 42860, 51432, 59880, 64290, 85720, 102864, 119760, 128580, 171440, 257160, 514320, 1069357, 2138714, 3208071, 4277428, 5346785, 6416142, 8554856, 10693570, 12832284, 16040355, 17109712, 21387140, 25664568, 32080710, 42774280, 51329136, 64161420, 85548560, 128322840, 256645680]

約数ペア:

[(1, 256645680), (2, 128322840), (3, 85548560), (4, 64161420), (5, 51329136), (6, 42774280), (8, 32080710), (10, 25664568), (12, 21387140), (15, 17109712), (16, 16040355), (20, 12832284), (24, 10693570), (30, 8554856), (40, 6416142), (48, 5346785), (60, 4277428), (80, 3208071), (120, 2138714), (240, 1069357), (499, 514320), (998, 257160), (1497, 171440), (1996, 128580), (2143, 119760), (2495, 102864), (2994, 85720), (3992, 64290), (4286, 59880), (4990, 51432), (5988, 42860), (6429, 39920), (7485, 34288), (7984, 32145), (8572, 29940), (9980, 25716), (10715, 23952), (11976, 21430), (12858, 19960), (14970, 17144)]