18909930

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{48487}}^1$

素因数の和:48510

約数の個数: 32

約数和(自身を含む): 48875904

約数和(自身を除く): 29965974

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 48487, 96974, 145461, 242435, 290922, 484870, 630331, 727305, 1260662, 1454610, 1890993, 3151655, 3781986, 6303310, 9454965, 18909930]

約数ペア:

[(1, 18909930), (2, 9454965), (3, 6303310), (5, 3781986), (6, 3151655), (10, 1890993), (13, 1454610), (15, 1260662), (26, 727305), (30, 630331), (39, 484870), (65, 290922), (78, 242435), (130, 145461), (195, 96974), (390, 48487)]