40820420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{743}}^1$

素因数の和:860

約数の個数: 48

約数和(自身を含む): 89244288

約数和(自身を除く): 48423868

約数列:

[1, 2, 4, 5, 10, 20, 41, 67, 82, 134, 164, 205, 268, 335, 410, 670, 743, 820, 1340, 1486, 2747, 2972, 3715, 5494, 7430, 10988, 13735, 14860, 27470, 30463, 49781, 54940, 60926, 99562, 121852, 152315, 199124, 248905, 304630, 497810, 609260, 995620, 2041021, 4082042, 8164084, 10205105, 20410210, 40820420]

約数ペア:

[(1, 40820420), (2, 20410210), (4, 10205105), (5, 8164084), (10, 4082042), (20, 2041021), (41, 995620), (67, 609260), (82, 497810), (134, 304630), (164, 248905), (205, 199124), (268, 152315), (335, 121852), (410, 99562), (670, 60926), (743, 54940), (820, 49781), (1340, 30463), (1486, 27470), (2747, 14860), (2972, 13735), (3715, 10988), (5494, 7430)]