8905730

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:338

約数の個数: 32

約数和(自身を含む): 16632000

約数和(自身を除く): 7726270

約数列:

[1, 2, 5, 10, 43, 86, 139, 149, 215, 278, 298, 430, 695, 745, 1390, 1490, 5977, 6407, 11954, 12814, 20711, 29885, 32035, 41422, 59770, 64070, 103555, 207110, 890573, 1781146, 4452865, 8905730]

約数ペア:

[(1, 8905730), (2, 4452865), (5, 1781146), (10, 890573), (43, 207110), (86, 103555), (139, 64070), (149, 59770), (215, 41422), (278, 32035), (298, 29885), (430, 20711), (695, 12814), (745, 11954), (1390, 6407), (1490, 5977)]