20520108

素因数分解:

$2^2\times 3^3\times 7^1\times {\mathrm{27143}}^1$

素因数の和:27163

約数の個数: 48

約数和(自身を含む): 60802560

約数和(自身を除く): 40282452

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 84, 108, 126, 189, 252, 378, 756, 27143, 54286, 81429, 108572, 162858, 190001, 244287, 325716, 380002, 488574, 570003, 732861, 760004, 977148, 1140006, 1465722, 1710009, 2280012, 2931444, 3420018, 5130027, 6840036, 10260054, 20520108]

約数ペア:

[(1, 20520108), (2, 10260054), (3, 6840036), (4, 5130027), (6, 3420018), (7, 2931444), (9, 2280012), (12, 1710009), (14, 1465722), (18, 1140006), (21, 977148), (27, 760004), (28, 732861), (36, 570003), (42, 488574), (54, 380002), (63, 325716), (84, 244287), (108, 190001), (126, 162858), (189, 108572), (252, 81429), (378, 54286), (756, 27143)]