290972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 589680

約数和(自身を除く): 298708

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 374, 389, 748, 778, 1556, 4279, 6613, 8558, 13226, 17116, 26452, 72743, 145486, 290972]

約数ペア:

[(1, 290972), (2, 145486), (4, 72743), (11, 26452), (17, 17116), (22, 13226), (34, 8558), (44, 6613), (68, 4279), (187, 1556), (374, 778), (389, 748)]