156965448020

素因数分解:

$2^2\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1973}}^1\times {\mathrm{21977}}^1$

素因数の和:24140

約数の個数: 48

約数和(自身を含む): 331631668368

約数和(自身を除く): 174666220348

約数列:

[1, 2, 4, 5, 10, 20, 181, 362, 724, 905, 1810, 1973, 3620, 3946, 7892, 9865, 19730, 21977, 39460, 43954, 87908, 109885, 219770, 357113, 439540, 714226, 1428452, 1785565, 3571130, 3977837, 7142260, 7955674, 15911348, 19889185, 39778370, 43360621, 79556740, 86721242, 173442484, 216803105, 433606210, 867212420, 7848272401, 15696544802, 31393089604, 39241362005, 78482724010, 156965448020]

約数ペア:

[(1, 156965448020), (2, 78482724010), (4, 39241362005), (5, 31393089604), (10, 15696544802), (20, 7848272401), (181, 867212420), (362, 433606210), (724, 216803105), (905, 173442484), (1810, 86721242), (1973, 79556740), (3620, 43360621), (3946, 39778370), (7892, 19889185), (9865, 15911348), (19730, 7955674), (21977, 7142260), (39460, 3977837), (43954, 3571130), (87908, 1785565), (109885, 1428452), (219770, 714226), (357113, 439540)]