19782640

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{8527}}^1$

素因数の和:8569

約数の個数: 40

約数和(自身を含む): 47586240

約数和(自身を除く): 27803600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 80, 116, 145, 232, 290, 464, 580, 1160, 2320, 8527, 17054, 34108, 42635, 68216, 85270, 136432, 170540, 247283, 341080, 494566, 682160, 989132, 1236415, 1978264, 2472830, 3956528, 4945660, 9891320, 19782640]

約数ペア:

[(1, 19782640), (2, 9891320), (4, 4945660), (5, 3956528), (8, 2472830), (10, 1978264), (16, 1236415), (20, 989132), (29, 682160), (40, 494566), (58, 341080), (80, 247283), (116, 170540), (145, 136432), (232, 85270), (290, 68216), (464, 42635), (580, 34108), (1160, 17054), (2320, 8527)]