18638910

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23011}}^1$

素因数の和:23030

約数の個数: 40

約数和(自身を含む): 50120136

約数和(自身を除く): 31481226

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 23011, 46022, 69033, 115055, 138066, 207099, 230110, 345165, 414198, 621297, 690330, 1035495, 1242594, 1863891, 2070990, 3106485, 3727782, 6212970, 9319455, 18638910]

約数ペア:

[(1, 18638910), (2, 9319455), (3, 6212970), (5, 3727782), (6, 3106485), (9, 2070990), (10, 1863891), (15, 1242594), (18, 1035495), (27, 690330), (30, 621297), (45, 414198), (54, 345165), (81, 230110), (90, 207099), (135, 138066), (162, 115055), (270, 69033), (405, 46022), (810, 23011)]