9181240

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2579}}^1$

素因数の和:2679

約数の個数: 32

約数和(自身を含む): 20898000

約数和(自身を除く): 11716760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2579, 3560, 5158, 10316, 12895, 20632, 25790, 51580, 103160, 229531, 459062, 918124, 1147655, 1836248, 2295310, 4590620, 9181240]

約数ペア:

[(1, 9181240), (2, 4590620), (4, 2295310), (5, 1836248), (8, 1147655), (10, 918124), (20, 459062), (40, 229531), (89, 103160), (178, 51580), (356, 25790), (445, 20632), (712, 12895), (890, 10316), (1780, 5158), (2579, 3560)]