28060840

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{2213}}^1$

素因数の和:2541

約数の個数: 32

約数和(自身を含む): 63364680

約数和(自身を除く): 35303840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2213, 2536, 3170, 4426, 6340, 8852, 11065, 12680, 17704, 22130, 44260, 88520, 701521, 1403042, 2806084, 3507605, 5612168, 7015210, 14030420, 28060840]

約数ペア:

[(1, 28060840), (2, 14030420), (4, 7015210), (5, 5612168), (8, 3507605), (10, 2806084), (20, 1403042), (40, 701521), (317, 88520), (634, 44260), (1268, 22130), (1585, 17704), (2213, 12680), (2536, 11065), (3170, 8852), (4426, 6340)]