20740190

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1$

素因数の和:536

約数の個数: 32

約数和(自身を含む): 38586240

約数和(自身を除く): 17846050

約数列:

[1, 2, 5, 10, 43, 86, 139, 215, 278, 347, 430, 694, 695, 1390, 1735, 3470, 5977, 11954, 14921, 29842, 29885, 48233, 59770, 74605, 96466, 149210, 241165, 482330, 2074019, 4148038, 10370095, 20740190]

約数ペア:

[(1, 20740190), (2, 10370095), (5, 4148038), (10, 2074019), (43, 482330), (86, 241165), (139, 149210), (215, 96466), (278, 74605), (347, 59770), (430, 48233), (694, 29885), (695, 29842), (1390, 14921), (1735, 11954), (3470, 5977)]