71697290

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{20903}}^1$

素因数の和:20931

約数の個数: 32

約数和(自身を含む): 150508800

約数和(自身を除く): 78811510

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 3430, 20903, 41806, 104515, 146321, 209030, 292642, 731605, 1024247, 1463210, 2048494, 5121235, 7169729, 10242470, 14339458, 35848645, 71697290]

約数ペア:

[(1, 71697290), (2, 35848645), (5, 14339458), (7, 10242470), (10, 7169729), (14, 5121235), (35, 2048494), (49, 1463210), (70, 1024247), (98, 731605), (245, 292642), (343, 209030), (490, 146321), (686, 104515), (1715, 41806), (3430, 20903)]