2487290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1$

素因数の和:111

約数の個数: 48

約数和(自身を含む): 5184648

約数和(自身を除く): 2697358

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 53, 65, 95, 106, 130, 190, 247, 265, 361, 494, 530, 689, 722, 1007, 1235, 1378, 1805, 2014, 2470, 3445, 3610, 4693, 5035, 6890, 9386, 10070, 13091, 19133, 23465, 26182, 38266, 46930, 65455, 95665, 130910, 191330, 248729, 497458, 1243645, 2487290]

約数ペア:

[(1, 2487290), (2, 1243645), (5, 497458), (10, 248729), (13, 191330), (19, 130910), (26, 95665), (38, 65455), (53, 46930), (65, 38266), (95, 26182), (106, 23465), (130, 19133), (190, 13091), (247, 10070), (265, 9386), (361, 6890), (494, 5035), (530, 4693), (689, 3610), (722, 3445), (1007, 2470), (1235, 2014), (1378, 1805)]