129631504

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{197609}}^1$

素因数の和:197658

約数の個数: 20

約数和(自身を含む): 257288220

約数和(自身を除く): 127656716

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 197609, 395218, 790436, 1580872, 3161744, 8101969, 16203938, 32407876, 64815752, 129631504]

約数ペア:

[(1, 129631504), (2, 64815752), (4, 32407876), (8, 16203938), (16, 8101969), (41, 3161744), (82, 1580872), (164, 790436), (328, 395218), (656, 197609)]