18422780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{48481}}^1$

素因数の和:48509

約数の個数: 24

約数和(自身を含む): 40724880

約数和(自身を除く): 22302100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 48481, 96962, 193924, 242405, 484810, 921139, 969620, 1842278, 3684556, 4605695, 9211390, 18422780]

約数ペア:

[(1, 18422780), (2, 9211390), (4, 4605695), (5, 3684556), (10, 1842278), (19, 969620), (20, 921139), (38, 484810), (76, 242405), (95, 193924), (190, 96962), (380, 48481)]