15615740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1571}}^1$

素因数の和:1658

約数の個数: 48

約数和(自身を含む): 38029824

約数和(自身を除く): 22414084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 71, 140, 142, 284, 355, 497, 710, 994, 1420, 1571, 1988, 2485, 3142, 4970, 6284, 7855, 9940, 10997, 15710, 21994, 31420, 43988, 54985, 109970, 111541, 219940, 223082, 446164, 557705, 780787, 1115410, 1561574, 2230820, 3123148, 3903935, 7807870, 15615740]

約数ペア:

[(1, 15615740), (2, 7807870), (4, 3903935), (5, 3123148), (7, 2230820), (10, 1561574), (14, 1115410), (20, 780787), (28, 557705), (35, 446164), (70, 223082), (71, 219940), (140, 111541), (142, 109970), (284, 54985), (355, 43988), (497, 31420), (710, 21994), (994, 15710), (1420, 10997), (1571, 9940), (1988, 7855), (2485, 6284), (3142, 4970)]