18928720

素因数分解:

$2^4\times 5^1\times {\mathrm{236609}}^1$

素因数の和:236622

約数の個数: 20

約数和(自身を含む): 44009460

約数和(自身を除く): 25080740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 236609, 473218, 946436, 1183045, 1892872, 2366090, 3785744, 4732180, 9464360, 18928720]

約数ペア:

[(1, 18928720), (2, 9464360), (4, 4732180), (5, 3785744), (8, 2366090), (10, 1892872), (16, 1183045), (20, 946436), (40, 473218), (80, 236609)]