1661567192789

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{1291}}^1\times {\mathrm{71237}}^1$

素因数の和:72653

約数の個数: 32

約数和(自身を含む): 1988053113600

約数和(自身を除く): 326485920811

約数列:

[1, 7, 29, 89, 203, 623, 1291, 2581, 9037, 18067, 37439, 71237, 114899, 262073, 498659, 804293, 2065873, 3332071, 6340093, 14461111, 23324497, 44380651, 91966967, 183862697, 643768769, 1287038879, 2667042043, 8185060063, 18669294301, 57295420441, 237366741827, 1661567192789]

約数ペア:

[(1, 1661567192789), (7, 237366741827), (29, 57295420441), (89, 18669294301), (203, 8185060063), (623, 2667042043), (1291, 1287038879), (2581, 643768769), (9037, 183862697), (18067, 91966967), (37439, 44380651), (71237, 23324497), (114899, 14461111), (262073, 6340093), (498659, 3332071), (804293, 2065873)]