20641830

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:973

約数の個数: 64

約数和(自身を含む): 54867456

約数和(自身を除く): 34225626

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 55, 66, 71, 110, 142, 165, 213, 330, 355, 426, 710, 781, 881, 1065, 1562, 1762, 2130, 2343, 2643, 3905, 4405, 4686, 5286, 7810, 8810, 9691, 11715, 13215, 19382, 23430, 26430, 29073, 48455, 58146, 62551, 96910, 125102, 145365, 187653, 290730, 312755, 375306, 625510, 688061, 938265, 1376122, 1876530, 2064183, 3440305, 4128366, 6880610, 10320915, 20641830]

約数ペア:

[(1, 20641830), (2, 10320915), (3, 6880610), (5, 4128366), (6, 3440305), (10, 2064183), (11, 1876530), (15, 1376122), (22, 938265), (30, 688061), (33, 625510), (55, 375306), (66, 312755), (71, 290730), (110, 187653), (142, 145365), (165, 125102), (213, 96910), (330, 62551), (355, 58146), (426, 48455), (710, 29073), (781, 26430), (881, 23430), (1065, 19382), (1562, 13215), (1762, 11715), (2130, 9691), (2343, 8810), (2643, 7810), (3905, 5286), (4405, 4686)]