80179640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64661}}^1$

素因数の和:64703

約数の個数: 32

約数和(自身を含む): 186226560

約数和(自身を除く): 106046920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 64661, 129322, 258644, 323305, 517288, 646610, 1293220, 2004491, 2586440, 4008982, 8017964, 10022455, 16035928, 20044910, 40089820, 80179640]

約数ペア:

[(1, 80179640), (2, 40089820), (4, 20044910), (5, 16035928), (8, 10022455), (10, 8017964), (20, 4008982), (31, 2586440), (40, 2004491), (62, 1293220), (124, 646610), (155, 517288), (248, 323305), (310, 258644), (620, 129322), (1240, 64661)]