87315760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{155921}}^1$

素因数の和:155941

約数の個数: 40

約数和(自身を含む): 232011936

約数和(自身を除く): 144696176

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 155921, 311842, 623684, 779605, 1091447, 1247368, 1559210, 2182894, 2494736, 3118420, 4365788, 5457235, 6236840, 8731576, 10914470, 12473680, 17463152, 21828940, 43657880, 87315760]

約数ペア:

[(1, 87315760), (2, 43657880), (4, 21828940), (5, 17463152), (7, 12473680), (8, 10914470), (10, 8731576), (14, 6236840), (16, 5457235), (20, 4365788), (28, 3118420), (35, 2494736), (40, 2182894), (56, 1559210), (70, 1247368), (80, 1091447), (112, 779605), (140, 623684), (280, 311842), (560, 155921)]