999888980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{485383}}^1$

素因数の和:485495

約数の個数: 24

約数和(自身を含む): 2120157312

約数和(自身を除く): 1120268332

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 485383, 970766, 1941532, 2426915, 4853830, 9707660, 49994449, 99988898, 199977796, 249972245, 499944490, 999888980]

約数ペア:

[(1, 999888980), (2, 499944490), (4, 249972245), (5, 199977796), (10, 99988898), (20, 49994449), (103, 9707660), (206, 4853830), (412, 2426915), (515, 1941532), (1030, 970766), (2060, 485383)]