678521714

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{73}}^1\times {\mathrm{1237}}^1$

素因数の和:1359

約数の個数: 48

約数和(自身を含む): 1181245128

約数和(自身を除く): 502723414

約数列:

[1, 2, 13, 17, 26, 34, 73, 146, 221, 289, 442, 578, 949, 1237, 1241, 1898, 2474, 2482, 3757, 7514, 16081, 16133, 21029, 21097, 32162, 32266, 42058, 42194, 90301, 180602, 273377, 274261, 357493, 546754, 548522, 714986, 1173913, 1535117, 2347826, 3070234, 4647409, 9294818, 19956521, 26096989, 39913042, 52193978, 339260857, 678521714]

約数ペア:

[(1, 678521714), (2, 339260857), (13, 52193978), (17, 39913042), (26, 26096989), (34, 19956521), (73, 9294818), (146, 4647409), (221, 3070234), (289, 2347826), (442, 1535117), (578, 1173913), (949, 714986), (1237, 548522), (1241, 546754), (1898, 357493), (2474, 274261), (2482, 273377), (3757, 180602), (7514, 90301), (16081, 42194), (16133, 42058), (21029, 32266), (21097, 32162)]