71399740

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{257}}^1\times {\mathrm{479}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 156038400

約数和(自身を除く): 84638660

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 257, 290, 479, 514, 580, 958, 1028, 1285, 1916, 2395, 2570, 4790, 5140, 7453, 9580, 13891, 14906, 27782, 29812, 37265, 55564, 69455, 74530, 123103, 138910, 149060, 246206, 277820, 492412, 615515, 1231030, 2462060, 3569987, 7139974, 14279948, 17849935, 35699870, 71399740]

約数ペア:

[(1, 71399740), (2, 35699870), (4, 17849935), (5, 14279948), (10, 7139974), (20, 3569987), (29, 2462060), (58, 1231030), (116, 615515), (145, 492412), (257, 277820), (290, 246206), (479, 149060), (514, 138910), (580, 123103), (958, 74530), (1028, 69455), (1285, 55564), (1916, 37265), (2395, 29812), (2570, 27782), (4790, 14906), (5140, 13891), (7453, 9580)]