287200520

素因数分解:

$2^3\times 5^1\times {\mathrm{1693}}^1\times {\mathrm{4241}}^1$

素因数の和:5945

約数の個数: 32

約数和(自身を含む): 646735320

約数和(自身を除く): 359534800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1693, 3386, 4241, 6772, 8465, 8482, 13544, 16930, 16964, 21205, 33860, 33928, 42410, 67720, 84820, 169640, 7180013, 14360026, 28720052, 35900065, 57440104, 71800130, 143600260, 287200520]

約数ペア:

[(1, 287200520), (2, 143600260), (4, 71800130), (5, 57440104), (8, 35900065), (10, 28720052), (20, 14360026), (40, 7180013), (1693, 169640), (3386, 84820), (4241, 67720), (6772, 42410), (8465, 33928), (8482, 33860), (13544, 21205), (16930, 16964)]