12919640

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1867}}^1$

素因数の和:2051

約数の個数: 32

約数和(自身を含む): 29252880

約数和(自身を除く): 16333240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 1867, 3460, 3734, 6920, 7468, 9335, 14936, 18670, 37340, 74680, 322991, 645982, 1291964, 1614955, 2583928, 3229910, 6459820, 12919640]

約数ペア:

[(1, 12919640), (2, 6459820), (4, 3229910), (5, 2583928), (8, 1614955), (10, 1291964), (20, 645982), (40, 322991), (173, 74680), (346, 37340), (692, 18670), (865, 14936), (1384, 9335), (1730, 7468), (1867, 6920), (3460, 3734)]