20481400

素因数分解:

$2^3\times 5^2\times {\mathrm{102407}}^1$

素因数の和:102423

約数の個数: 24

約数和(自身を含む): 47619720

約数和(自身を除く): 27138320

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 102407, 204814, 409628, 512035, 819256, 1024070, 2048140, 2560175, 4096280, 5120350, 10240700, 20481400]

約数ペア:

[(1, 20481400), (2, 10240700), (4, 5120350), (5, 4096280), (8, 2560175), (10, 2048140), (20, 1024070), (25, 819256), (40, 512035), (50, 409628), (100, 204814), (200, 102407)]