28156390

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{1229}}^1$

素因数の和:1344

約数の個数: 32

約数和(自身を含む): 53136000

約数和(自身を除く): 24979610

約数列:

[1, 2, 5, 10, 29, 58, 79, 145, 158, 290, 395, 790, 1229, 2291, 2458, 4582, 6145, 11455, 12290, 22910, 35641, 71282, 97091, 178205, 194182, 356410, 485455, 970910, 2815639, 5631278, 14078195, 28156390]

約数ペア:

[(1, 28156390), (2, 14078195), (5, 5631278), (10, 2815639), (29, 970910), (58, 485455), (79, 356410), (145, 194182), (158, 178205), (290, 97091), (395, 71282), (790, 35641), (1229, 22910), (2291, 12290), (2458, 11455), (4582, 6145)]