64320815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:419

約数の個数: 32

約数和(自身を含む): 86800896

約数和(自身を除く): 22480081

約数列:

[1, 5, 13, 31, 65, 137, 155, 233, 403, 685, 1165, 1781, 2015, 3029, 4247, 7223, 8905, 15145, 21235, 31921, 36115, 55211, 93899, 159605, 276055, 414973, 469495, 989551, 2074865, 4947755, 12864163, 64320815]

約数ペア:

[(1, 64320815), (5, 12864163), (13, 4947755), (31, 2074865), (65, 989551), (137, 469495), (155, 414973), (233, 276055), (403, 159605), (685, 93899), (1165, 55211), (1781, 36115), (2015, 31921), (3029, 21235), (4247, 15145), (7223, 8905)]