25625420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{359}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 55883520

約数和(自身を除く): 30258100

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 359, 415, 430, 718, 830, 860, 1436, 1660, 1795, 3569, 3590, 7138, 7180, 14276, 15437, 17845, 29797, 30874, 35690, 59594, 61748, 71380, 77185, 119188, 148985, 154370, 297970, 308740, 595940, 1281271, 2562542, 5125084, 6406355, 12812710, 25625420]

約数ペア:

[(1, 25625420), (2, 12812710), (4, 6406355), (5, 5125084), (10, 2562542), (20, 1281271), (43, 595940), (83, 308740), (86, 297970), (166, 154370), (172, 148985), (215, 119188), (332, 77185), (359, 71380), (415, 61748), (430, 59594), (718, 35690), (830, 30874), (860, 29797), (1436, 17845), (1660, 15437), (1795, 14276), (3569, 7180), (3590, 7138)]