1243645

素因数分解:

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

素因数の和:109

約数の個数: 24

約数和(自身を含む): 1728216

約数和(自身を除く): 484571

約数列:

[1, 5, 13, 19, 53, 65, 95, 247, 265, 361, 689, 1007, 1235, 1805, 3445, 4693, 5035, 13091, 19133, 23465, 65455, 95665, 248729, 1243645]

約数ペア:

[(1, 1243645), (5, 248729), (13, 95665), (19, 65455), (53, 23465), (65, 19133), (95, 13091), (247, 5035), (265, 4693), (361, 3445), (689, 1805), (1007, 1235)]