90260920

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{21089}}^1$

素因数の和:21207

約数の個数: 32

約数和(自身を含む): 204994800

約数和(自身を除く): 114733880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 21089, 42178, 84356, 105445, 168712, 210890, 421780, 843560, 2256523, 4513046, 9026092, 11282615, 18052184, 22565230, 45130460, 90260920]

約数ペア:

[(1, 90260920), (2, 45130460), (4, 22565230), (5, 18052184), (8, 11282615), (10, 9026092), (20, 4513046), (40, 2256523), (107, 843560), (214, 421780), (428, 210890), (535, 168712), (856, 105445), (1070, 84356), (2140, 42178), (4280, 21089)]