646782128

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{1393927}}^1$

素因数の和:1393964

約数の個数: 20

約数和(自身を含む): 1296353040

約数和(自身を除く): 649570912

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 1393927, 2787854, 5575708, 11151416, 22302832, 40423883, 80847766, 161695532, 323391064, 646782128]

約数ペア:

[(1, 646782128), (2, 323391064), (4, 161695532), (8, 80847766), (16, 40423883), (29, 22302832), (58, 11151416), (116, 5575708), (232, 2787854), (464, 1393927)]