20245740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{1283}}^1$

素因数の和:1558

約数の個数: 48

約数和(自身を含む): 56947968

約数和(自身を除く): 36702228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 263, 526, 789, 1052, 1283, 1315, 1578, 2566, 2630, 3156, 3849, 3945, 5132, 5260, 6415, 7698, 7890, 12830, 15396, 15780, 19245, 25660, 38490, 76980, 337429, 674858, 1012287, 1349716, 1687145, 2024574, 3374290, 4049148, 5061435, 6748580, 10122870, 20245740]

約数ペア:

[(1, 20245740), (2, 10122870), (3, 6748580), (4, 5061435), (5, 4049148), (6, 3374290), (10, 2024574), (12, 1687145), (15, 1349716), (20, 1012287), (30, 674858), (60, 337429), (263, 76980), (526, 38490), (789, 25660), (1052, 19245), (1283, 15780), (1315, 15396), (1578, 12830), (2566, 7890), (2630, 7698), (3156, 6415), (3849, 5260), (3945, 5132)]