8391740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{8563}}^1$

素因数の和:8586

約数の個数: 36

約数和(自身を含む): 20502216

約数和(自身を除く): 12110476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 8563, 17126, 34252, 42815, 59941, 85630, 119882, 171260, 239764, 299705, 419587, 599410, 839174, 1198820, 1678348, 2097935, 4195870, 8391740]

約数ペア:

[(1, 8391740), (2, 4195870), (4, 2097935), (5, 1678348), (7, 1198820), (10, 839174), (14, 599410), (20, 419587), (28, 299705), (35, 239764), (49, 171260), (70, 119882), (98, 85630), (140, 59941), (196, 42815), (245, 34252), (490, 17126), (980, 8563)]