12221480

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{3433}}^1$

素因数の和:3533

約数の個数: 32

約数和(自身を含む): 27815400

約数和(自身を除く): 15593920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 3433, 3560, 6866, 13732, 17165, 27464, 34330, 68660, 137320, 305537, 611074, 1222148, 1527685, 2444296, 3055370, 6110740, 12221480]

約数ペア:

[(1, 12221480), (2, 6110740), (4, 3055370), (5, 2444296), (8, 1527685), (10, 1222148), (20, 611074), (40, 305537), (89, 137320), (178, 68660), (356, 34330), (445, 27464), (712, 17165), (890, 13732), (1780, 6866), (3433, 3560)]