278313620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{18143}}^1$

素因数の和:18224

約数の個数: 48

約数和(自身を含む): 640120320

約数和(自身を除く): 361806700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 59, 65, 118, 130, 236, 260, 295, 590, 767, 1180, 1534, 3068, 3835, 7670, 15340, 18143, 36286, 72572, 90715, 181430, 235859, 362860, 471718, 943436, 1070437, 1179295, 2140874, 2358590, 4281748, 4717180, 5352185, 10704370, 13915681, 21408740, 27831362, 55662724, 69578405, 139156810, 278313620]

約数ペア:

[(1, 278313620), (2, 139156810), (4, 69578405), (5, 55662724), (10, 27831362), (13, 21408740), (20, 13915681), (26, 10704370), (52, 5352185), (59, 4717180), (65, 4281748), (118, 2358590), (130, 2140874), (236, 1179295), (260, 1070437), (295, 943436), (590, 471718), (767, 362860), (1180, 235859), (1534, 181430), (3068, 90715), (3835, 72572), (7670, 36286), (15340, 18143)]