25577968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{122971}}^1$

素因数の和:122992

約数の個数: 20

約数和(自身を含む): 53369848

約数和(自身を除く): 27791880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 122971, 245942, 491884, 983768, 1598623, 1967536, 3197246, 6394492, 12788984, 25577968]

約数ペア:

[(1, 25577968), (2, 12788984), (4, 6394492), (8, 3197246), (13, 1967536), (16, 1598623), (26, 983768), (52, 491884), (104, 245942), (208, 122971)]