645822274

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{64621}}^1$

素因数の和:64905

約数の個数: 16

約数和(自身を含む): 1023612480

約数和(自身を除く): 377790206

約数列:

[1, 2, 19, 38, 263, 526, 4997, 9994, 64621, 129242, 1227799, 2455598, 16995323, 33990646, 322911137, 645822274]

約数ペア:

[(1, 645822274), (2, 322911137), (19, 33990646), (38, 16995323), (263, 2455598), (526, 1227799), (4997, 129242), (9994, 64621)]