80630920

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{18839}}^1$

素因数の和:18957

約数の個数: 32

約数和(自身を含む): 183124800

約数和(自身を除く): 102493880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 18839, 37678, 75356, 94195, 150712, 188390, 376780, 753560, 2015773, 4031546, 8063092, 10078865, 16126184, 20157730, 40315460, 80630920]

約数ペア:

[(1, 80630920), (2, 40315460), (4, 20157730), (5, 16126184), (8, 10078865), (10, 8063092), (20, 4031546), (40, 2015773), (107, 753560), (214, 376780), (428, 188390), (535, 150712), (856, 94195), (1070, 75356), (2140, 37678), (4280, 18839)]