389635660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{2557}}^1$

素因数の和:2986

約数の個数: 48

約数和(自身を含む): 863785440

約数和(自身を除く): 474149780

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 401, 802, 1604, 2005, 2557, 4010, 5114, 7619, 8020, 10228, 12785, 15238, 25570, 30476, 38095, 48583, 51140, 76190, 97166, 152380, 194332, 242915, 485830, 971660, 1025357, 2050714, 4101428, 5126785, 10253570, 19481783, 20507140, 38963566, 77927132, 97408915, 194817830, 389635660]

約数ペア:

[(1, 389635660), (2, 194817830), (4, 97408915), (5, 77927132), (10, 38963566), (19, 20507140), (20, 19481783), (38, 10253570), (76, 5126785), (95, 4101428), (190, 2050714), (380, 1025357), (401, 971660), (802, 485830), (1604, 242915), (2005, 194332), (2557, 152380), (4010, 97166), (5114, 76190), (7619, 51140), (8020, 48583), (10228, 38095), (12785, 30476), (15238, 25570)]