78665420

素因数分解:

$2^2\times 5^1\times {\mathrm{1453}}^1\times {\mathrm{2707}}^1$

素因数の和:4169

約数の個数: 24

約数和(自身を含む): 165372144

約数和(自身を除く): 86706724

約数列:

[1, 2, 4, 5, 10, 20, 1453, 2707, 2906, 5414, 5812, 7265, 10828, 13535, 14530, 27070, 29060, 54140, 3933271, 7866542, 15733084, 19666355, 39332710, 78665420]

約数ペア:

[(1, 78665420), (2, 39332710), (4, 19666355), (5, 15733084), (10, 7866542), (20, 3933271), (1453, 54140), (2707, 29060), (2906, 27070), (5414, 14530), (5812, 13535), (7265, 10828)]