20196345

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:322

約数の個数: 48

約数和(自身を含む): 36260352

約数和(自身を除く): 16064007

約数列:

[1, 3, 5, 13, 15, 31, 39, 65, 93, 155, 169, 195, 257, 403, 465, 507, 771, 845, 1209, 1285, 2015, 2535, 3341, 3855, 5239, 6045, 7967, 10023, 15717, 16705, 23901, 26195, 39835, 43433, 50115, 78585, 103571, 119505, 130299, 217165, 310713, 517855, 651495, 1346423, 1553565, 4039269, 6732115, 20196345]

約数ペア:

[(1, 20196345), (3, 6732115), (5, 4039269), (13, 1553565), (15, 1346423), (31, 651495), (39, 517855), (65, 310713), (93, 217165), (155, 130299), (169, 119505), (195, 103571), (257, 78585), (403, 50115), (465, 43433), (507, 39835), (771, 26195), (845, 23901), (1209, 16705), (1285, 15717), (2015, 10023), (2535, 7967), (3341, 6045), (3855, 5239)]