22499920

素因数分解:

$2^4\times 5^1\times {\mathrm{281249}}^1$

素因数の和:281262

約数の個数: 20

約数和(自身を含む): 52312500

約数和(自身を除く): 29812580

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 281249, 562498, 1124996, 1406245, 2249992, 2812490, 4499984, 5624980, 11249960, 22499920]

約数ペア:

[(1, 22499920), (2, 11249960), (4, 5624980), (5, 4499984), (8, 2812490), (10, 2249992), (16, 1406245), (20, 1124996), (40, 562498), (80, 281249)]