27979825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{457}}^1$

素因数の和:577

約数の個数: 24

約数和(自身を含む): 36346880

約数和(自身を除く): 8367055

約数列:

[1, 5, 25, 31, 79, 155, 395, 457, 775, 1975, 2285, 2449, 11425, 12245, 14167, 36103, 61225, 70835, 180515, 354175, 902575, 1119193, 5595965, 27979825]

約数ペア:

[(1, 27979825), (5, 5595965), (25, 1119193), (31, 902575), (79, 354175), (155, 180515), (395, 70835), (457, 61225), (775, 36103), (1975, 14167), (2285, 12245), (2449, 11425)]