66853865

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1297}}^1$

素因数の和:1389

約数の個数: 24

約数和(自身を含む): 88362648

約数和(自身を除く): 21508783

約数列:

[1, 5, 13, 61, 65, 169, 305, 793, 845, 1297, 3965, 6485, 10309, 16861, 51545, 79117, 84305, 219193, 395585, 1028521, 1095965, 5142605, 13370773, 66853865]

約数ペア:

[(1, 66853865), (5, 13370773), (13, 5142605), (61, 1095965), (65, 1028521), (169, 395585), (305, 219193), (793, 84305), (845, 79117), (1297, 51545), (3965, 16861), (6485, 10309)]