18157870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 35631648

約数和(自身を除く): 17473778

約数列:

[1, 2, 5, 10, 17, 34, 61, 85, 103, 122, 170, 206, 289, 305, 515, 578, 610, 1030, 1037, 1445, 1751, 2074, 2890, 3502, 5185, 6283, 8755, 10370, 12566, 17510, 17629, 29767, 31415, 35258, 59534, 62830, 88145, 106811, 148835, 176290, 213622, 297670, 534055, 1068110, 1815787, 3631574, 9078935, 18157870]

約数ペア:

[(1, 18157870), (2, 9078935), (5, 3631574), (10, 1815787), (17, 1068110), (34, 534055), (61, 297670), (85, 213622), (103, 176290), (122, 148835), (170, 106811), (206, 88145), (289, 62830), (305, 59534), (515, 35258), (578, 31415), (610, 29767), (1030, 17629), (1037, 17510), (1445, 12566), (1751, 10370), (2074, 8755), (2890, 6283), (3502, 5185)]