28706220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1579}}^1$

素因数の和:1695

約数の個数: 72

約数和(自身を含む): 87993360

約数和(自身を除く): 59287140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 101, 180, 202, 303, 404, 505, 606, 909, 1010, 1212, 1515, 1579, 1818, 2020, 3030, 3158, 3636, 4545, 4737, 6060, 6316, 7895, 9090, 9474, 14211, 15790, 18180, 18948, 23685, 28422, 31580, 47370, 56844, 71055, 94740, 142110, 159479, 284220, 318958, 478437, 637916, 797395, 956874, 1435311, 1594790, 1913748, 2392185, 2870622, 3189580, 4784370, 5741244, 7176555, 9568740, 14353110, 28706220]

約数ペア:

[(1, 28706220), (2, 14353110), (3, 9568740), (4, 7176555), (5, 5741244), (6, 4784370), (9, 3189580), (10, 2870622), (12, 2392185), (15, 1913748), (18, 1594790), (20, 1435311), (30, 956874), (36, 797395), (45, 637916), (60, 478437), (90, 318958), (101, 284220), (180, 159479), (202, 142110), (303, 94740), (404, 71055), (505, 56844), (606, 47370), (909, 31580), (1010, 28422), (1212, 23685), (1515, 18948), (1579, 18180), (1818, 15790), (2020, 14211), (3030, 9474), (3158, 9090), (3636, 7895), (4545, 6316), (4737, 6060)]