2781515

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{491}}^1$

素因数の和:610

約数の個数: 16

約数和(自身を含む): 3684096

約数和(自身を除く): 902581

約数列:

[1, 5, 11, 55, 103, 491, 515, 1133, 2455, 5401, 5665, 27005, 50573, 252865, 556303, 2781515]

約数ペア:

[(1, 2781515), (5, 556303), (11, 252865), (55, 50573), (103, 27005), (491, 5665), (515, 5401), (1133, 2455)]