81051260

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{1019}}^1$

素因数の和:1166

約数の個数: 48

約数和(自身を含む): 176329440

約数和(自身を除く): 95278180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 164, 194, 205, 388, 410, 485, 820, 970, 1019, 1940, 2038, 3977, 4076, 5095, 7954, 10190, 15908, 19885, 20380, 39770, 41779, 79540, 83558, 98843, 167116, 197686, 208895, 395372, 417790, 494215, 835580, 988430, 1976860, 4052563, 8105126, 16210252, 20262815, 40525630, 81051260]

約数ペア:

[(1, 81051260), (2, 40525630), (4, 20262815), (5, 16210252), (10, 8105126), (20, 4052563), (41, 1976860), (82, 988430), (97, 835580), (164, 494215), (194, 417790), (205, 395372), (388, 208895), (410, 197686), (485, 167116), (820, 98843), (970, 83558), (1019, 79540), (1940, 41779), (2038, 39770), (3977, 20380), (4076, 19885), (5095, 15908), (7954, 10190)]