20164023920

素因数分解:

$2^4\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{231877}}^1$

素因数の和:232977

約数の個数: 40

約数和(自身を含む): 46924687104

約数和(自身を除く): 26760663184

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1087, 2174, 4348, 5435, 8696, 10870, 17392, 21740, 43480, 86960, 231877, 463754, 927508, 1159385, 1855016, 2318770, 3710032, 4637540, 9275080, 18550160, 252050299, 504100598, 1008201196, 1260251495, 2016402392, 2520502990, 4032804784, 5041005980, 10082011960, 20164023920]

約数ペア:

[(1, 20164023920), (2, 10082011960), (4, 5041005980), (5, 4032804784), (8, 2520502990), (10, 2016402392), (16, 1260251495), (20, 1008201196), (40, 504100598), (80, 252050299), (1087, 18550160), (2174, 9275080), (4348, 4637540), (5435, 3710032), (8696, 2318770), (10870, 1855016), (17392, 1159385), (21740, 927508), (43480, 463754), (86960, 231877)]