31503890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{991}}^1$

素因数の和:1043

約数の個数: 48

約数和(自身を含む): 65781504

約数和(自身を除く): 34277614

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 289, 374, 578, 935, 991, 1445, 1870, 1982, 2890, 3179, 4955, 6358, 9910, 10901, 15895, 16847, 21802, 31790, 33694, 54505, 84235, 109010, 168470, 185317, 286399, 370634, 572798, 926585, 1431995, 1853170, 2863990, 3150389, 6300778, 15751945, 31503890]

約数ペア:

[(1, 31503890), (2, 15751945), (5, 6300778), (10, 3150389), (11, 2863990), (17, 1853170), (22, 1431995), (34, 926585), (55, 572798), (85, 370634), (110, 286399), (170, 185317), (187, 168470), (289, 109010), (374, 84235), (578, 54505), (935, 33694), (991, 31790), (1445, 21802), (1870, 16847), (1982, 15895), (2890, 10901), (3179, 9910), (4955, 6358)]