213352640

素因数分解:

$2^6\times 5^1\times {\mathrm{666727}}^1$

素因数の和:666744

約数の個数: 28

約数和(自身を含む): 508046736

約数和(自身を除く): 294694096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 666727, 1333454, 2666908, 3333635, 5333816, 6667270, 10667632, 13334540, 21335264, 26669080, 42670528, 53338160, 106676320, 213352640]

約数ペア:

[(1, 213352640), (2, 106676320), (4, 53338160), (5, 42670528), (8, 26669080), (10, 21335264), (16, 13334540), (20, 10667632), (32, 6667270), (40, 5333816), (64, 3333635), (80, 2666908), (160, 1333454), (320, 666727)]