258768320

素因数分解:

$2^6\times 5^1\times {\mathrm{808651}}^1$

素因数の和:808668

約数の個数: 28

約数和(自身を含む): 616192824

約数和(自身を除く): 357424504

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 808651, 1617302, 3234604, 4043255, 6469208, 8086510, 12938416, 16173020, 25876832, 32346040, 51753664, 64692080, 129384160, 258768320]

約数ペア:

[(1, 258768320), (2, 129384160), (4, 64692080), (5, 51753664), (8, 32346040), (10, 25876832), (16, 16173020), (20, 12938416), (32, 8086510), (40, 6469208), (64, 4043255), (80, 3234604), (160, 1617302), (320, 808651)]