617968

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{2971}}^1$

素因数の和:2992

約数の個数: 20

約数和(自身を含む): 1289848

約数和(自身を除く): 671880

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 2971, 5942, 11884, 23768, 38623, 47536, 77246, 154492, 308984, 617968]

約数ペア:

[(1, 617968), (2, 308984), (4, 154492), (8, 77246), (13, 47536), (16, 38623), (26, 23768), (52, 11884), (104, 5942), (208, 2971)]