28798220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{587}}^1$

素因数の和:830

約数の個数: 48

約数和(自身を含む): 66382848

約数和(自身を除く): 37584628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 587, 892, 1115, 1174, 2230, 2348, 2453, 2935, 4460, 4906, 5870, 6457, 9812, 11740, 12265, 12914, 24530, 25828, 32285, 49060, 64570, 129140, 130901, 261802, 523604, 654505, 1309010, 1439911, 2618020, 2879822, 5759644, 7199555, 14399110, 28798220]

約数ペア:

[(1, 28798220), (2, 14399110), (4, 7199555), (5, 5759644), (10, 2879822), (11, 2618020), (20, 1439911), (22, 1309010), (44, 654505), (55, 523604), (110, 261802), (220, 130901), (223, 129140), (446, 64570), (587, 49060), (892, 32285), (1115, 25828), (1174, 24530), (2230, 12914), (2348, 12265), (2453, 11740), (2935, 9812), (4460, 6457), (4906, 5870)]