21625160

素因数分解:

$2^3\times 5^1\times {\mathrm{540629}}^1$

素因数の和:540640

約数の個数: 16

約数和(自身を含む): 48656700

約数和(自身を除く): 27031540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 540629, 1081258, 2162516, 2703145, 4325032, 5406290, 10812580, 21625160]

約数ペア:

[(1, 21625160), (2, 10812580), (4, 5406290), (5, 4325032), (8, 2703145), (10, 2162516), (20, 1081258), (40, 540629)]