2578775

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 24

約数和(自身を含む): 3459600

約数和(自身を除く): 880825

約数列:

[1, 5, 19, 25, 61, 89, 95, 305, 445, 475, 1159, 1525, 1691, 2225, 5429, 5795, 8455, 27145, 28975, 42275, 103151, 135725, 515755, 2578775]

約数ペア:

[(1, 2578775), (5, 515755), (19, 135725), (25, 103151), (61, 42275), (89, 28975), (95, 27145), (305, 8455), (445, 5795), (475, 5429), (1159, 2225), (1525, 1691)]