153890180

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{149}}^1\times {\mathrm{457}}^1$

素因数の和:728

約数の個数: 48

約数和(自身を含む): 328935600

約数和(自身を除く): 175045420

約数列:

[1, 2, 4, 5, 10, 20, 113, 149, 226, 298, 452, 457, 565, 596, 745, 914, 1130, 1490, 1828, 2260, 2285, 2980, 4570, 9140, 16837, 33674, 51641, 67348, 68093, 84185, 103282, 136186, 168370, 206564, 258205, 272372, 336740, 340465, 516410, 680930, 1032820, 1361860, 7694509, 15389018, 30778036, 38472545, 76945090, 153890180]

約数ペア:

[(1, 153890180), (2, 76945090), (4, 38472545), (5, 30778036), (10, 15389018), (20, 7694509), (113, 1361860), (149, 1032820), (226, 680930), (298, 516410), (452, 340465), (457, 336740), (565, 272372), (596, 258205), (745, 206564), (914, 168370), (1130, 136186), (1490, 103282), (1828, 84185), (2260, 68093), (2285, 67348), (2980, 51641), (4570, 33674), (9140, 16837)]