19585780

素因数分解:

$2^2\times 5^1\times {\mathrm{643}}^1\times {\mathrm{1523}}^1$

素因数の和:2175

約数の個数: 24

約数和(自身を含む): 41221152

約数和(自身を除く): 21635372

約数列:

[1, 2, 4, 5, 10, 20, 643, 1286, 1523, 2572, 3046, 3215, 6092, 6430, 7615, 12860, 15230, 30460, 979289, 1958578, 3917156, 4896445, 9792890, 19585780]

約数ペア:

[(1, 19585780), (2, 9792890), (4, 4896445), (5, 3917156), (10, 1958578), (20, 979289), (643, 30460), (1286, 15230), (1523, 12860), (2572, 7615), (3046, 6430), (3215, 6092)]