20865560

素因数分解:

$2^3\times 5^1\times {\mathrm{467}}^1\times {\mathrm{1117}}^1$

素因数の和:1595

約数の個数: 32

約数和(自身を含む): 47090160

約数和(自身を除く): 26224600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 467, 934, 1117, 1868, 2234, 2335, 3736, 4468, 4670, 5585, 8936, 9340, 11170, 18680, 22340, 44680, 521639, 1043278, 2086556, 2608195, 4173112, 5216390, 10432780, 20865560]

約数ペア:

[(1, 20865560), (2, 10432780), (4, 5216390), (5, 4173112), (8, 2608195), (10, 2086556), (20, 1043278), (40, 521639), (467, 44680), (934, 22340), (1117, 18680), (1868, 11170), (2234, 9340), (2335, 8936), (3736, 5585), (4468, 4670)]