1239968405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{1453}}^1$

素因数の和:2181

約数の個数: 32

約数和(自身を含む): 1690362240

約数和(自身を除く): 450393835

約数列:

[1, 5, 13, 19, 65, 95, 247, 691, 1235, 1453, 3455, 7265, 8983, 13129, 18889, 27607, 44915, 65645, 94445, 138035, 170677, 358891, 853385, 1004023, 1794455, 5020115, 13052299, 19076437, 65261495, 95382185, 247993681, 1239968405]

約数ペア:

[(1, 1239968405), (5, 247993681), (13, 95382185), (19, 65261495), (65, 19076437), (95, 13052299), (247, 5020115), (691, 1794455), (1235, 1004023), (1453, 853385), (3455, 358891), (7265, 170677), (8983, 138035), (13129, 94445), (18889, 65645), (27607, 44915)]