81700268

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{22129}}^1$

素因数の和:22217

約数の個数: 24

約数和(自身を含む): 156149280

約数和(自身を除く): 74449012

約数列:

[1, 2, 4, 13, 26, 52, 71, 142, 284, 923, 1846, 3692, 22129, 44258, 88516, 287677, 575354, 1150708, 1571159, 3142318, 6284636, 20425067, 40850134, 81700268]

約数ペア:

[(1, 81700268), (2, 40850134), (4, 20425067), (13, 6284636), (26, 3142318), (52, 1571159), (71, 1150708), (142, 575354), (284, 287677), (923, 88516), (1846, 44258), (3692, 22129)]