1811380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^2$

素因数の和:144

約数の個数: 36

約数和(自身を含む): 3981348

約数和(自身を除く): 2169968

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1927, 2209, 3854, 4418, 7708, 8836, 9635, 11045, 19270, 22090, 38540, 44180, 90569, 181138, 362276, 452845, 905690, 1811380]

約数ペア:

[(1, 1811380), (2, 905690), (4, 452845), (5, 362276), (10, 181138), (20, 90569), (41, 44180), (47, 38540), (82, 22090), (94, 19270), (164, 11045), (188, 9635), (205, 8836), (235, 7708), (410, 4418), (470, 3854), (820, 2209), (940, 1927)]