78855560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{281627}}^1$

素因数の和:281645

約数の個数: 32

約数和(自身を含む): 202772160

約数和(自身を除く): 123916600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 281627, 563254, 1126508, 1408135, 1971389, 2253016, 2816270, 3942778, 5632540, 7885556, 9856945, 11265080, 15771112, 19713890, 39427780, 78855560]

約数ペア:

[(1, 78855560), (2, 39427780), (4, 19713890), (5, 15771112), (7, 11265080), (8, 9856945), (10, 7885556), (14, 5632540), (20, 3942778), (28, 2816270), (35, 2253016), (40, 1971389), (56, 1408135), (70, 1126508), (140, 563254), (280, 281627)]