201771925

素因数分解:

$5^2\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{283}}^1$

素因数の和:410

約数の個数: 36

約数和(自身を含む): 268345920

約数和(自身を除く): 66573995

約数列:

[1, 5, 19, 25, 79, 95, 283, 361, 395, 475, 1415, 1501, 1805, 1975, 5377, 7075, 7505, 9025, 22357, 26885, 28519, 37525, 102163, 111785, 134425, 142595, 424783, 510815, 558925, 712975, 2123915, 2554075, 8070877, 10619575, 40354385, 201771925]

約数ペア:

[(1, 201771925), (5, 40354385), (19, 10619575), (25, 8070877), (79, 2554075), (95, 2123915), (283, 712975), (361, 558925), (395, 510815), (475, 424783), (1415, 142595), (1501, 134425), (1805, 111785), (1975, 102163), (5377, 37525), (7075, 28519), (7505, 26885), (9025, 22357)]