53278640

素因数分解:

$2^4\times 5^1\times {\mathrm{665983}}^1$

素因数の和:665996

約数の個数: 20

約数和(自身を含む): 123873024

約数和(自身を除く): 70594384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 665983, 1331966, 2663932, 3329915, 5327864, 6659830, 10655728, 13319660, 26639320, 53278640]

約数ペア:

[(1, 53278640), (2, 26639320), (4, 13319660), (5, 10655728), (8, 6659830), (10, 5327864), (16, 3329915), (20, 2663932), (40, 1331966), (80, 665983)]