87155660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{1087}}^1$

素因数の和:1326

約数の個数: 48

約数和(自身を含む): 193751040

約数和(自身を除く): 106595380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 380, 422, 844, 1055, 1087, 2110, 2174, 4009, 4220, 4348, 5435, 8018, 10870, 16036, 20045, 20653, 21740, 40090, 41306, 80180, 82612, 103265, 206530, 229357, 413060, 458714, 917428, 1146785, 2293570, 4357783, 4587140, 8715566, 17431132, 21788915, 43577830, 87155660]

約数ペア:

[(1, 87155660), (2, 43577830), (4, 21788915), (5, 17431132), (10, 8715566), (19, 4587140), (20, 4357783), (38, 2293570), (76, 1146785), (95, 917428), (190, 458714), (211, 413060), (380, 229357), (422, 206530), (844, 103265), (1055, 82612), (1087, 80180), (2110, 41306), (2174, 40090), (4009, 21740), (4220, 20653), (4348, 20045), (5435, 16036), (8018, 10870)]