38781620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{881}}^1$

素因数の和:992

約数の個数: 48

約数和(自身を含む): 85349376

約数和(自身を除く): 46567756

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 881, 1420, 1762, 2201, 3524, 4402, 4405, 8804, 8810, 11005, 17620, 22010, 27311, 44020, 54622, 62551, 109244, 125102, 136555, 250204, 273110, 312755, 546220, 625510, 1251020, 1939081, 3878162, 7756324, 9695405, 19390810, 38781620]

約数ペア:

[(1, 38781620), (2, 19390810), (4, 9695405), (5, 7756324), (10, 3878162), (20, 1939081), (31, 1251020), (62, 625510), (71, 546220), (124, 312755), (142, 273110), (155, 250204), (284, 136555), (310, 125102), (355, 109244), (620, 62551), (710, 54622), (881, 44020), (1420, 27311), (1762, 22010), (2201, 17620), (3524, 11005), (4402, 8810), (4405, 8804)]