31578885

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{2347}}^1$

素因数の和:2394

約数の個数: 48

約数和(自身を含む): 61536384

約数和(自身を除く): 29957499

約数列:

[1, 3, 5, 9, 13, 15, 23, 39, 45, 65, 69, 115, 117, 195, 207, 299, 345, 585, 897, 1035, 1495, 2347, 2691, 4485, 7041, 11735, 13455, 21123, 30511, 35205, 53981, 91533, 105615, 152555, 161943, 269905, 274599, 457665, 485829, 701753, 809715, 1372995, 2105259, 2429145, 3508765, 6315777, 10526295, 31578885]

約数ペア:

[(1, 31578885), (3, 10526295), (5, 6315777), (9, 3508765), (13, 2429145), (15, 2105259), (23, 1372995), (39, 809715), (45, 701753), (65, 485829), (69, 457665), (115, 274599), (117, 269905), (195, 161943), (207, 152555), (299, 105615), (345, 91533), (585, 53981), (897, 35205), (1035, 30511), (1495, 21123), (2347, 13455), (2691, 11735), (4485, 7041)]