163906405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{977}}^1$

素因数の和:1113

約数の個数: 32

約数和(自身を含む): 221810400

約数和(自身を除く): 57903995

約数列:

[1, 5, 13, 29, 65, 89, 145, 377, 445, 977, 1157, 1885, 2581, 4885, 5785, 12701, 12905, 28333, 33553, 63505, 86953, 141665, 167765, 368329, 434765, 1130389, 1841645, 2521637, 5651945, 12608185, 32781281, 163906405]

約数ペア:

[(1, 163906405), (5, 32781281), (13, 12608185), (29, 5651945), (65, 2521637), (89, 1841645), (145, 1130389), (377, 434765), (445, 368329), (977, 167765), (1157, 141665), (1885, 86953), (2581, 63505), (4885, 33553), (5785, 28333), (12701, 12905)]