8553725

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1$

素因数の和:221

約数の個数: 24

約数和(自身を含む): 11070720

約数和(自身を除く): 2516995

約数列:

[1, 5, 25, 61, 71, 79, 305, 355, 395, 1525, 1775, 1975, 4331, 4819, 5609, 21655, 24095, 28045, 108275, 120475, 140225, 342149, 1710745, 8553725]

約数ペア:

[(1, 8553725), (5, 1710745), (25, 342149), (61, 140225), (71, 120475), (79, 108275), (305, 28045), (355, 24095), (395, 21655), (1525, 5609), (1775, 4819), (1975, 4331)]