64379705

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{61}}^1\times {\mathrm{1249}}^1$

素因数の和:1341

約数の個数: 24

約数和(自身を含む): 85095000

約数和(自身を除く): 20715295

約数列:

[1, 5, 13, 61, 65, 169, 305, 793, 845, 1249, 3965, 6245, 10309, 16237, 51545, 76189, 81185, 211081, 380945, 990457, 1055405, 4952285, 12875941, 64379705]

約数ペア:

[(1, 64379705), (5, 12875941), (13, 4952285), (61, 1055405), (65, 990457), (169, 380945), (305, 211081), (793, 81185), (845, 76189), (1249, 51545), (3965, 16237), (6245, 10309)]