78378190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{719}}^1\times {\mathrm{991}}^1$

素因数の和:1728

約数の個数: 32

約数和(自身を含む): 154275840

約数和(自身を除く): 75897650

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 719, 991, 1438, 1982, 3595, 4955, 7190, 7909, 9910, 10901, 15818, 21802, 39545, 54505, 79090, 109010, 712529, 1425058, 3562645, 7125290, 7837819, 15675638, 39189095, 78378190]

約数ペア:

[(1, 78378190), (2, 39189095), (5, 15675638), (10, 7837819), (11, 7125290), (22, 3562645), (55, 1425058), (110, 712529), (719, 109010), (991, 79090), (1438, 54505), (1982, 39545), (3595, 21802), (4955, 15818), (7190, 10901), (7909, 9910)]