15940628

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{211}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 32695488

約数和(自身を除く): 16754860

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 101, 187, 202, 211, 374, 404, 422, 748, 844, 1111, 1717, 2222, 2321, 3434, 3587, 4444, 4642, 6868, 7174, 9284, 14348, 18887, 21311, 37774, 39457, 42622, 75548, 78914, 85244, 157828, 234421, 362287, 468842, 724574, 937684, 1449148, 3985157, 7970314, 15940628]

約数ペア:

[(1, 15940628), (2, 7970314), (4, 3985157), (11, 1449148), (17, 937684), (22, 724574), (34, 468842), (44, 362287), (68, 234421), (101, 157828), (187, 85244), (202, 78914), (211, 75548), (374, 42622), (404, 39457), (422, 37774), (748, 21311), (844, 18887), (1111, 14348), (1717, 9284), (2222, 7174), (2321, 6868), (3434, 4642), (3587, 4444)]