18782240

素因数分解:

$2^5\times 5^1\times {\mathrm{117389}}^1$

素因数の和:117404

約数の個数: 24

約数和(自身を含む): 44373420

約数和(自身を除く): 25591180

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 117389, 234778, 469556, 586945, 939112, 1173890, 1878224, 2347780, 3756448, 4695560, 9391120, 18782240]

約数ペア:

[(1, 18782240), (2, 9391120), (4, 4695560), (5, 3756448), (8, 2347780), (10, 1878224), (16, 1173890), (20, 939112), (32, 586945), (40, 469556), (80, 234778), (160, 117389)]