12571420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{15331}}^1$

素因数の和:15381

約数の個数: 24

約数和(自身を含む): 27045648

約数和(自身を除く): 14474228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 15331, 30662, 61324, 76655, 153310, 306620, 628571, 1257142, 2514284, 3142855, 6285710, 12571420]

約数ペア:

[(1, 12571420), (2, 6285710), (4, 3142855), (5, 2514284), (10, 1257142), (20, 628571), (41, 306620), (82, 153310), (164, 76655), (205, 61324), (410, 30662), (820, 15331)]