20874120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{197}}^1\times {\mathrm{883}}^1$

素因数の和:1094

約数の個数: 64

約数和(自身を含む): 63011520

約数和(自身を除く): 42137400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 197, 394, 591, 788, 883, 985, 1182, 1576, 1766, 1970, 2364, 2649, 2955, 3532, 3940, 4415, 4728, 5298, 5910, 7064, 7880, 8830, 10596, 11820, 13245, 17660, 21192, 23640, 26490, 35320, 52980, 105960, 173951, 347902, 521853, 695804, 869755, 1043706, 1391608, 1739510, 2087412, 2609265, 3479020, 4174824, 5218530, 6958040, 10437060, 20874120]

約数ペア:

[(1, 20874120), (2, 10437060), (3, 6958040), (4, 5218530), (5, 4174824), (6, 3479020), (8, 2609265), (10, 2087412), (12, 1739510), (15, 1391608), (20, 1043706), (24, 869755), (30, 695804), (40, 521853), (60, 347902), (120, 173951), (197, 105960), (394, 52980), (591, 35320), (788, 26490), (883, 23640), (985, 21192), (1182, 17660), (1576, 13245), (1766, 11820), (1970, 10596), (2364, 8830), (2649, 7880), (2955, 7064), (3532, 5910), (3940, 5298), (4415, 4728)]