20195778825

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2087419}}^1$

素因数の和:2087478

約数の個数: 36

約数和(自身を含む): 37014131440

約数和(自身を除く): 16818352615

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 3225, 9675, 2087419, 6262257, 10437095, 18786771, 31311285, 52185475, 89759017, 93933855, 156556425, 269277051, 448795085, 469669275, 807831153, 1346385255, 2243975425, 4039155765, 6731926275, 20195778825]

約数ペア:

[(1, 20195778825), (3, 6731926275), (5, 4039155765), (9, 2243975425), (15, 1346385255), (25, 807831153), (43, 469669275), (45, 448795085), (75, 269277051), (129, 156556425), (215, 93933855), (225, 89759017), (387, 52185475), (645, 31311285), (1075, 18786771), (1935, 10437095), (3225, 6262257), (9675, 2087419)]