20281458888

素因数分解:

$2^3\times 3^3\times {\mathrm{307}}^1\times {\mathrm{305849}}^1$

素因数の和:306171

約数の個数: 64

約数和(自身を含む): 56521080000

約数和(自身を除く): 36239621112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 307, 614, 921, 1228, 1842, 2456, 2763, 3684, 5526, 7368, 8289, 11052, 16578, 22104, 33156, 66312, 305849, 611698, 917547, 1223396, 1835094, 2446792, 2752641, 3670188, 5505282, 7340376, 8257923, 11010564, 16515846, 22021128, 33031692, 66063384, 93895643, 187791286, 281686929, 375582572, 563373858, 751165144, 845060787, 1126747716, 1690121574, 2253495432, 2535182361, 3380243148, 5070364722, 6760486296, 10140729444, 20281458888]

約数ペア:

[(1, 20281458888), (2, 10140729444), (3, 6760486296), (4, 5070364722), (6, 3380243148), (8, 2535182361), (9, 2253495432), (12, 1690121574), (18, 1126747716), (24, 845060787), (27, 751165144), (36, 563373858), (54, 375582572), (72, 281686929), (108, 187791286), (216, 93895643), (307, 66063384), (614, 33031692), (921, 22021128), (1228, 16515846), (1842, 11010564), (2456, 8257923), (2763, 7340376), (3684, 5505282), (5526, 3670188), (7368, 2752641), (8289, 2446792), (11052, 1835094), (16578, 1223396), (22104, 917547), (33156, 611698), (66312, 305849)]