19837280

素因数分解:

$2^5\times 5^1\times {\mathrm{123983}}^1$

素因数の和:123998

約数の個数: 24

約数和(自身を含む): 46865952

約数和(自身を除く): 27028672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123983, 247966, 495932, 619915, 991864, 1239830, 1983728, 2479660, 3967456, 4959320, 9918640, 19837280]

約数ペア:

[(1, 19837280), (2, 9918640), (4, 4959320), (5, 3967456), (8, 2479660), (10, 1983728), (16, 1239830), (20, 991864), (32, 619915), (40, 495932), (80, 247966), (160, 123983)]