514640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{919}}^1$

素因数の和:939

約数の個数: 40

約数和(自身を含む): 1368960

約数和(自身を除く): 854320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 919, 1838, 3676, 4595, 6433, 7352, 9190, 12866, 14704, 18380, 25732, 32165, 36760, 51464, 64330, 73520, 102928, 128660, 257320, 514640]

約数ペア:

[(1, 514640), (2, 257320), (4, 128660), (5, 102928), (7, 73520), (8, 64330), (10, 51464), (14, 36760), (16, 32165), (20, 25732), (28, 18380), (35, 14704), (40, 12866), (56, 9190), (70, 7352), (80, 6433), (112, 4595), (140, 3676), (280, 1838), (560, 919)]