127975420

素因数分解:

$2^2\times 5^1\times {\mathrm{1613}}^1\times {\mathrm{3967}}^1$

素因数の和:5589

約数の個数: 24

約数和(自身を含む): 268982784

約数和(自身を除く): 141007364

約数列:

[1, 2, 4, 5, 10, 20, 1613, 3226, 3967, 6452, 7934, 8065, 15868, 16130, 19835, 32260, 39670, 79340, 6398771, 12797542, 25595084, 31993855, 63987710, 127975420]

約数ペア:

[(1, 127975420), (2, 63987710), (4, 31993855), (5, 25595084), (10, 12797542), (20, 6398771), (1613, 79340), (3226, 39670), (3967, 32260), (6452, 19835), (7934, 16130), (8065, 15868)]