25712020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{113}}^1\times {\mathrm{367}}^1$

素因数の和:520

約数の個数: 48

約数和(自身を含む): 56383488

約数和(自身を除く): 30671468

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 113, 124, 155, 226, 310, 367, 452, 565, 620, 734, 1130, 1468, 1835, 2260, 3503, 3670, 7006, 7340, 11377, 14012, 17515, 22754, 35030, 41471, 45508, 56885, 70060, 82942, 113770, 165884, 207355, 227540, 414710, 829420, 1285601, 2571202, 5142404, 6428005, 12856010, 25712020]

約数ペア:

[(1, 25712020), (2, 12856010), (4, 6428005), (5, 5142404), (10, 2571202), (20, 1285601), (31, 829420), (62, 414710), (113, 227540), (124, 207355), (155, 165884), (226, 113770), (310, 82942), (367, 70060), (452, 56885), (565, 45508), (620, 41471), (734, 35030), (1130, 22754), (1468, 17515), (1835, 14012), (2260, 11377), (3503, 7340), (3670, 7006)]