68820505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1021}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 95806368

約数和(自身を除く): 26985863

約数列:

[1, 5, 13, 17, 61, 65, 85, 221, 305, 793, 1021, 1037, 1105, 3965, 5105, 5185, 13273, 13481, 17357, 62281, 66365, 67405, 86785, 225641, 311405, 809653, 1058777, 1128205, 4048265, 5293885, 13764101, 68820505]

約数ペア:

[(1, 68820505), (5, 13764101), (13, 5293885), (17, 4048265), (61, 1128205), (65, 1058777), (85, 809653), (221, 311405), (305, 225641), (793, 86785), (1021, 67405), (1037, 66365), (1105, 62281), (3965, 17357), (5105, 13481), (5185, 13273)]