2021776420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1\times {\mathrm{2473}}^1$

素因数の和:3520

約数の個数: 48

約数和(自身を含む): 4355407728

約数和(自身を除く): 2333631308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 997, 1994, 2473, 3988, 4946, 4985, 9892, 9970, 12365, 19940, 24730, 40877, 49460, 81754, 101393, 163508, 202786, 204385, 405572, 408770, 506965, 817540, 1013930, 2027860, 2465581, 4931162, 9862324, 12327905, 24655810, 49311620, 101088821, 202177642, 404355284, 505444105, 1010888210, 2021776420]

約数ペア:

[(1, 2021776420), (2, 1010888210), (4, 505444105), (5, 404355284), (10, 202177642), (20, 101088821), (41, 49311620), (82, 24655810), (164, 12327905), (205, 9862324), (410, 4931162), (820, 2465581), (997, 2027860), (1994, 1013930), (2473, 817540), (3988, 506965), (4946, 408770), (4985, 405572), (9892, 204385), (9970, 202786), (12365, 163508), (19940, 101393), (24730, 81754), (40877, 49460)]