19941280

素因数分解:

$2^5\times 5^1\times {\mathrm{124633}}^1$

素因数の和:124648

約数の個数: 24

約数和(自身を含む): 47111652

約数和(自身を除く): 27170372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 124633, 249266, 498532, 623165, 997064, 1246330, 1994128, 2492660, 3988256, 4985320, 9970640, 19941280]

約数ペア:

[(1, 19941280), (2, 9970640), (4, 4985320), (5, 3988256), (8, 2492660), (10, 1994128), (16, 1246330), (20, 997064), (32, 623165), (40, 498532), (80, 249266), (160, 124633)]