68439940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{167}}^1\times {\mathrm{661}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 149474304

約数和(自身を除く): 81034364

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 167, 310, 334, 620, 661, 668, 835, 1322, 1670, 2644, 3305, 3340, 5177, 6610, 10354, 13220, 20491, 20708, 25885, 40982, 51770, 81964, 102455, 103540, 110387, 204910, 220774, 409820, 441548, 551935, 1103870, 2207740, 3421997, 6843994, 13687988, 17109985, 34219970, 68439940]

約数ペア:

[(1, 68439940), (2, 34219970), (4, 17109985), (5, 13687988), (10, 6843994), (20, 3421997), (31, 2207740), (62, 1103870), (124, 551935), (155, 441548), (167, 409820), (310, 220774), (334, 204910), (620, 110387), (661, 103540), (668, 102455), (835, 81964), (1322, 51770), (1670, 40982), (2644, 25885), (3305, 20708), (3340, 20491), (5177, 13220), (6610, 10354)]