31135480

素因数分解:

$2^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{167}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 72576000

約数和(自身を除く): 41440520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 59, 79, 118, 158, 167, 236, 295, 316, 334, 395, 472, 590, 632, 668, 790, 835, 1180, 1336, 1580, 1670, 2360, 3160, 3340, 4661, 6680, 9322, 9853, 13193, 18644, 19706, 23305, 26386, 37288, 39412, 46610, 49265, 52772, 65965, 78824, 93220, 98530, 105544, 131930, 186440, 197060, 263860, 394120, 527720, 778387, 1556774, 3113548, 3891935, 6227096, 7783870, 15567740, 31135480]

約数ペア:

[(1, 31135480), (2, 15567740), (4, 7783870), (5, 6227096), (8, 3891935), (10, 3113548), (20, 1556774), (40, 778387), (59, 527720), (79, 394120), (118, 263860), (158, 197060), (167, 186440), (236, 131930), (295, 105544), (316, 98530), (334, 93220), (395, 78824), (472, 65965), (590, 52772), (632, 49265), (668, 46610), (790, 39412), (835, 37288), (1180, 26386), (1336, 23305), (1580, 19706), (1670, 18644), (2360, 13193), (3160, 9853), (3340, 9322), (4661, 6680)]