78302080

素因数分解:

$2^7\times 5^1\times {\mathrm{122347}}^1$

素因数の和:122366

約数の個数: 32

約数和(自身を含む): 187192440

約数和(自身を除く): 108890360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 122347, 244694, 489388, 611735, 978776, 1223470, 1957552, 2446940, 3915104, 4893880, 7830208, 9787760, 15660416, 19575520, 39151040, 78302080]

約数ペア:

[(1, 78302080), (2, 39151040), (4, 19575520), (5, 15660416), (8, 9787760), (10, 7830208), (16, 4893880), (20, 3915104), (32, 2446940), (40, 1957552), (64, 1223470), (80, 978776), (128, 611735), (160, 489388), (320, 244694), (640, 122347)]