127910660

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{823}}^1$

素因数の和:1260

約数の個数: 48

約数和(自身を含む): 283785600

約数和(自身を除く): 155874940

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 409, 818, 823, 1636, 1646, 2045, 3292, 4090, 4115, 7771, 8180, 8230, 15542, 15637, 16460, 31084, 31274, 38855, 62548, 77710, 78185, 155420, 156370, 312740, 336607, 673214, 1346428, 1683035, 3366070, 6395533, 6732140, 12791066, 25582132, 31977665, 63955330, 127910660]

約数ペア:

[(1, 127910660), (2, 63955330), (4, 31977665), (5, 25582132), (10, 12791066), (19, 6732140), (20, 6395533), (38, 3366070), (76, 1683035), (95, 1346428), (190, 673214), (380, 336607), (409, 312740), (818, 156370), (823, 155420), (1636, 78185), (1646, 77710), (2045, 62548), (3292, 38855), (4090, 31274), (4115, 31084), (7771, 16460), (8180, 15637), (8230, 15542)]