26156360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{389}}^1$

素因数の和:482

約数の個数: 48

約数和(自身を含む): 60477300

約数和(自身を除く): 34320940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 389, 410, 778, 820, 1556, 1640, 1681, 1945, 3112, 3362, 3890, 6724, 7780, 8405, 13448, 15560, 15949, 16810, 31898, 33620, 63796, 67240, 79745, 127592, 159490, 318980, 637960, 653909, 1307818, 2615636, 3269545, 5231272, 6539090, 13078180, 26156360]

約数ペア:

[(1, 26156360), (2, 13078180), (4, 6539090), (5, 5231272), (8, 3269545), (10, 2615636), (20, 1307818), (40, 653909), (41, 637960), (82, 318980), (164, 159490), (205, 127592), (328, 79745), (389, 67240), (410, 63796), (778, 33620), (820, 31898), (1556, 16810), (1640, 15949), (1681, 15560), (1945, 13448), (3112, 8405), (3362, 7780), (3890, 6724)]