79012828220

素因数分解:

$2^2\times 5^1\times {\mathrm{197621}}^1\times {\mathrm{19991}}^1$

素因数の和:217621

約数の個数: 24

約数和(自身を含む): 165936079008

約数和(自身を除く): 86923250788

約数列:

[1, 2, 4, 5, 10, 20, 19991, 39982, 79964, 99955, 197621, 199910, 395242, 399820, 790484, 988105, 1976210, 3952420, 3950641411, 7901282822, 15802565644, 19753207055, 39506414110, 79012828220]

約数ペア:

[(1, 79012828220), (2, 39506414110), (4, 19753207055), (5, 15802565644), (10, 7901282822), (20, 3950641411), (19991, 3952420), (39982, 1976210), (79964, 988105), (99955, 790484), (197621, 399820), (199910, 395242)]