28440490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{757}}^1$

素因数の和:811

約数の個数: 48

約数和(自身を含む): 58641912

約数和(自身を除く): 30201422

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 289, 442, 578, 757, 1105, 1445, 1514, 2210, 2890, 3757, 3785, 7514, 7570, 9841, 12869, 18785, 19682, 25738, 37570, 49205, 64345, 98410, 128690, 167297, 218773, 334594, 437546, 836485, 1093865, 1672970, 2187730, 2844049, 5688098, 14220245, 28440490]

約数ペア:

[(1, 28440490), (2, 14220245), (5, 5688098), (10, 2844049), (13, 2187730), (17, 1672970), (26, 1093865), (34, 836485), (65, 437546), (85, 334594), (130, 218773), (170, 167297), (221, 128690), (289, 98410), (442, 64345), (578, 49205), (757, 37570), (1105, 25738), (1445, 19682), (1514, 18785), (2210, 12869), (2890, 9841), (3757, 7570), (3785, 7514)]