290270960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{518341}}^1$

素因数の和:518361

約数の個数: 40

約数和(自身を含む): 771292896

約数和(自身を除く): 481021936

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 518341, 1036682, 2073364, 2591705, 3628387, 4146728, 5183410, 7256774, 8293456, 10366820, 14513548, 18141935, 20733640, 29027096, 36283870, 41467280, 58054192, 72567740, 145135480, 290270960]

約数ペア:

[(1, 290270960), (2, 145135480), (4, 72567740), (5, 58054192), (7, 41467280), (8, 36283870), (10, 29027096), (14, 20733640), (16, 18141935), (20, 14513548), (28, 10366820), (35, 8293456), (40, 7256774), (56, 5183410), (70, 4146728), (80, 3628387), (112, 2591705), (140, 2073364), (280, 1036682), (560, 518341)]