19685875

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 27256320

約数和(自身を除く): 7570445

約数列:

[1, 5, 11, 25, 55, 103, 125, 139, 275, 515, 695, 1133, 1375, 1529, 2575, 3475, 5665, 7645, 12875, 14317, 17375, 28325, 38225, 71585, 141625, 157487, 191125, 357925, 787435, 1789625, 3937175, 19685875]

約数ペア:

[(1, 19685875), (5, 3937175), (11, 1789625), (25, 787435), (55, 357925), (103, 191125), (125, 157487), (139, 141625), (275, 71585), (515, 38225), (695, 28325), (1133, 17375), (1375, 14317), (1529, 12875), (2575, 7645), (3475, 5665)]