80318180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^2\times {\mathrm{2389}}^1$

素因数の和:2480

約数の個数: 36

約数和(自身を含む): 172954740

約数和(自身を除く): 92636560

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1681, 2389, 3362, 4778, 6724, 8405, 9556, 11945, 16810, 23890, 33620, 47780, 97949, 195898, 391796, 489745, 979490, 1958980, 4015909, 8031818, 16063636, 20079545, 40159090, 80318180]

約数ペア:

[(1, 80318180), (2, 40159090), (4, 20079545), (5, 16063636), (10, 8031818), (20, 4015909), (41, 1958980), (82, 979490), (164, 489745), (205, 391796), (410, 195898), (820, 97949), (1681, 47780), (2389, 33620), (3362, 23890), (4778, 16810), (6724, 11945), (8405, 9556)]