78801520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140717}}^1$

素因数の和:140737

約数の個数: 40

約数和(自身を含む): 209388384

約数和(自身を除く): 130586864

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140717, 281434, 562868, 703585, 985019, 1125736, 1407170, 1970038, 2251472, 2814340, 3940076, 4925095, 5628680, 7880152, 9850190, 11257360, 15760304, 19700380, 39400760, 78801520]

約数ペア:

[(1, 78801520), (2, 39400760), (4, 19700380), (5, 15760304), (7, 11257360), (8, 9850190), (10, 7880152), (14, 5628680), (16, 4925095), (20, 3940076), (28, 2814340), (35, 2251472), (40, 1970038), (56, 1407170), (70, 1125736), (80, 985019), (112, 703585), (140, 562868), (280, 281434), (560, 140717)]