400680968

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{2636059}}^1$

素因数の和:2636084

約数の個数: 16

約数和(自身を含む): 790818000

約数和(自身を除く): 390137032

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 2636059, 5272118, 10544236, 21088472, 50085121, 100170242, 200340484, 400680968]

約数ペア:

[(1, 400680968), (2, 200340484), (4, 100170242), (8, 50085121), (19, 21088472), (38, 10544236), (76, 5272118), (152, 2636059)]