85891120

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{21911}}^1$

素因数の和:21938

約数の個数: 60

約数和(自身を含む): 232311024

約数和(自身を除く): 146419904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 21911, 43822, 87644, 109555, 153377, 175288, 219110, 306754, 350576, 438220, 613508, 766885, 876440, 1073639, 1227016, 1533770, 1752880, 2147278, 2454032, 3067540, 4294556, 5368195, 6135080, 8589112, 10736390, 12270160, 17178224, 21472780, 42945560, 85891120]

約数ペア:

[(1, 85891120), (2, 42945560), (4, 21472780), (5, 17178224), (7, 12270160), (8, 10736390), (10, 8589112), (14, 6135080), (16, 5368195), (20, 4294556), (28, 3067540), (35, 2454032), (40, 2147278), (49, 1752880), (56, 1533770), (70, 1227016), (80, 1073639), (98, 876440), (112, 766885), (140, 613508), (196, 438220), (245, 350576), (280, 306754), (392, 219110), (490, 175288), (560, 153377), (784, 109555), (980, 87644), (1960, 43822), (3920, 21911)]