78428475

素因数分解:

$3^2\times 5^2\times {\mathrm{348571}}^1$

素因数の和:348587

約数の個数: 18

約数和(自身を含む): 140474516

約数和(自身を除く): 62046041

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 348571, 1045713, 1742855, 3137139, 5228565, 8714275, 15685695, 26142825, 78428475]

約数ペア:

[(1, 78428475), (3, 26142825), (5, 15685695), (9, 8714275), (15, 5228565), (25, 3137139), (45, 1742855), (75, 1045713), (225, 348571)]