78885520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{140867}}^1$

素因数の和:140887

約数の個数: 40

約数和(自身を含む): 209611584

約数和(自身を除く): 130726064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 140867, 281734, 563468, 704335, 986069, 1126936, 1408670, 1972138, 2253872, 2817340, 3944276, 4930345, 5634680, 7888552, 9860690, 11269360, 15777104, 19721380, 39442760, 78885520]

約数ペア:

[(1, 78885520), (2, 39442760), (4, 19721380), (5, 15777104), (7, 11269360), (8, 9860690), (10, 7888552), (14, 5634680), (16, 4930345), (20, 3944276), (28, 2817340), (35, 2253872), (40, 1972138), (56, 1408670), (70, 1126936), (80, 986069), (112, 704335), (140, 563468), (280, 281734), (560, 140867)]