123199420

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{324209}}^1$

素因数の和:324237

約数の個数: 24

約数和(自身を含む): 272336400

約数和(自身を除く): 149136980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 324209, 648418, 1296836, 1621045, 3242090, 6159971, 6484180, 12319942, 24639884, 30799855, 61599710, 123199420]

約数ペア:

[(1, 123199420), (2, 61599710), (4, 30799855), (5, 24639884), (10, 12319942), (19, 6484180), (20, 6159971), (38, 3242090), (76, 1621045), (95, 1296836), (190, 648418), (380, 324209)]