25554160

素因数分解:

$2^4\times 5^1\times {\mathrm{319427}}^1$

素因数の和:319440

約数の個数: 20

約数和(自身を含む): 59413608

約数和(自身を除く): 33859448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 319427, 638854, 1277708, 1597135, 2555416, 3194270, 5110832, 6388540, 12777080, 25554160]

約数ペア:

[(1, 25554160), (2, 12777080), (4, 6388540), (5, 5110832), (8, 3194270), (10, 2555416), (16, 1597135), (20, 1277708), (40, 638854), (80, 319427)]