31678425

素因数分解:

$3^3\times 5^2\times {\mathrm{71}}^1\times {\mathrm{661}}^1$

素因数の和:751

約数の個数: 48

約数和(自身を含む): 59103360

約数和(自身を除く): 27424935

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 71, 75, 135, 213, 225, 355, 639, 661, 675, 1065, 1775, 1917, 1983, 3195, 3305, 5325, 5949, 9585, 9915, 15975, 16525, 17847, 29745, 46931, 47925, 49575, 89235, 140793, 148725, 234655, 422379, 446175, 703965, 1173275, 1267137, 2111895, 3519825, 6335685, 10559475, 31678425]

約数ペア:

[(1, 31678425), (3, 10559475), (5, 6335685), (9, 3519825), (15, 2111895), (25, 1267137), (27, 1173275), (45, 703965), (71, 446175), (75, 422379), (135, 234655), (213, 148725), (225, 140793), (355, 89235), (639, 49575), (661, 47925), (675, 46931), (1065, 29745), (1775, 17847), (1917, 16525), (1983, 15975), (3195, 9915), (3305, 9585), (5325, 5949)]