30481840

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{8861}}^1$

素因数の和:8917

約数の個数: 40

約数和(自身を含む): 72526608

約数和(自身を除く): 42044768

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 8861, 17722, 35444, 44305, 70888, 88610, 141776, 177220, 354440, 381023, 708880, 762046, 1524092, 1905115, 3048184, 3810230, 6096368, 7620460, 15240920, 30481840]

約数ペア:

[(1, 30481840), (2, 15240920), (4, 7620460), (5, 6096368), (8, 3810230), (10, 3048184), (16, 1905115), (20, 1524092), (40, 762046), (43, 708880), (80, 381023), (86, 354440), (172, 177220), (215, 141776), (344, 88610), (430, 70888), (688, 44305), (860, 35444), (1720, 17722), (3440, 8861)]