19613140

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{3907}}^1$

素因数の和:4167

約数の個数: 24

約数和(自身を含む): 41362272

約数和(自身を除く): 21749132

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 3907, 5020, 7814, 15628, 19535, 39070, 78140, 980657, 1961314, 3922628, 4903285, 9806570, 19613140]

約数ペア:

[(1, 19613140), (2, 9806570), (4, 4903285), (5, 3922628), (10, 1961314), (20, 980657), (251, 78140), (502, 39070), (1004, 19535), (1255, 15628), (2510, 7814), (3907, 5020)]