128575660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{4283}}^1$

素因数の和:4390

約数の個数: 48

約数和(自身を含む): 287884800

約数和(自身を除く): 159309140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1501, 1580, 3002, 4283, 6004, 7505, 8566, 15010, 17132, 21415, 30020, 42830, 81377, 85660, 162754, 325508, 338357, 406885, 676714, 813770, 1353428, 1627540, 1691785, 3383570, 6428783, 6767140, 12857566, 25715132, 32143915, 64287830, 128575660]

約数ペア:

[(1, 128575660), (2, 64287830), (4, 32143915), (5, 25715132), (10, 12857566), (19, 6767140), (20, 6428783), (38, 3383570), (76, 1691785), (79, 1627540), (95, 1353428), (158, 813770), (190, 676714), (316, 406885), (380, 338357), (395, 325508), (790, 162754), (1501, 85660), (1580, 81377), (3002, 42830), (4283, 30020), (6004, 21415), (7505, 17132), (8566, 15010)]