90520820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{6569}}^1$

素因数の和:6644

約数の個数: 48

約数和(自身を含む): 208610640

約数和(自身を除く): 118089820

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 53, 65, 106, 130, 212, 260, 265, 530, 689, 1060, 1378, 2756, 3445, 6569, 6890, 13138, 13780, 26276, 32845, 65690, 85397, 131380, 170794, 341588, 348157, 426985, 696314, 853970, 1392628, 1707940, 1740785, 3481570, 4526041, 6963140, 9052082, 18104164, 22630205, 45260410, 90520820]

約数ペア:

[(1, 90520820), (2, 45260410), (4, 22630205), (5, 18104164), (10, 9052082), (13, 6963140), (20, 4526041), (26, 3481570), (52, 1740785), (53, 1707940), (65, 1392628), (106, 853970), (130, 696314), (212, 426985), (260, 348157), (265, 341588), (530, 170794), (689, 131380), (1060, 85397), (1378, 65690), (2756, 32845), (3445, 26276), (6569, 13780), (6890, 13138)]