645094138

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{19993}}^1$

素因数の和:20098

約数の個数: 32

約数和(自身を含む): 1118544336

約数和(自身を除く): 473450198

約数列:

[1, 2, 13, 17, 26, 34, 73, 146, 221, 442, 949, 1241, 1898, 2482, 16133, 19993, 32266, 39986, 259909, 339881, 519818, 679762, 1459489, 2918978, 4418453, 8836906, 18973357, 24811313, 37946714, 49622626, 322547069, 645094138]

約数ペア:

[(1, 645094138), (2, 322547069), (13, 49622626), (17, 37946714), (26, 24811313), (34, 18973357), (73, 8836906), (146, 4418453), (221, 2918978), (442, 1459489), (949, 679762), (1241, 519818), (1898, 339881), (2482, 259909), (16133, 39986), (19993, 32266)]