20176942565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1\times {\mathrm{24971}}^1$

素因数の和:25421

約数の個数: 32

約数和(自身を含む): 26984143872

約数和(自身を除く): 6807201307

約数列:

[1, 5, 13, 31, 65, 155, 401, 403, 2005, 2015, 5213, 12431, 24971, 26065, 62155, 124855, 161603, 324623, 774101, 808015, 1623115, 3870505, 10013371, 10063313, 50066855, 50316565, 130173823, 310414501, 650869115, 1552072505, 4035388513, 20176942565]

約数ペア:

[(1, 20176942565), (5, 4035388513), (13, 1552072505), (31, 650869115), (65, 310414501), (155, 130173823), (401, 50316565), (403, 50066855), (2005, 10063313), (2015, 10013371), (5213, 3870505), (12431, 1623115), (24971, 808015), (26065, 774101), (62155, 324623), (124855, 161603)]