989211190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2221}}^1\times {\mathrm{4049}}^1$

素因数の和:6288

約数の個数: 32

約数和(自身を含む): 1943805600

約数和(自身を除く): 954594410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 2221, 4049, 4442, 8098, 11105, 20245, 22210, 24431, 40490, 44539, 48862, 89078, 122155, 222695, 244310, 445390, 8992829, 17985658, 44964145, 89928290, 98921119, 197842238, 494605595, 989211190]

約数ペア:

[(1, 989211190), (2, 494605595), (5, 197842238), (10, 98921119), (11, 89928290), (22, 44964145), (55, 17985658), (110, 8992829), (2221, 445390), (4049, 244310), (4442, 222695), (8098, 122155), (11105, 89078), (20245, 48862), (22210, 44539), (24431, 40490)]