81363580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1\times {\mathrm{857}}^1$

素因数の和:1014

約数の個数: 48

約数和(自身を含む): 176432256

約数和(自身を除く): 95068676

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 101, 188, 202, 235, 404, 470, 505, 857, 940, 1010, 1714, 2020, 3428, 4285, 4747, 8570, 9494, 17140, 18988, 23735, 40279, 47470, 80558, 86557, 94940, 161116, 173114, 201395, 346228, 402790, 432785, 805580, 865570, 1731140, 4068179, 8136358, 16272716, 20340895, 40681790, 81363580]

約数ペア:

[(1, 81363580), (2, 40681790), (4, 20340895), (5, 16272716), (10, 8136358), (20, 4068179), (47, 1731140), (94, 865570), (101, 805580), (188, 432785), (202, 402790), (235, 346228), (404, 201395), (470, 173114), (505, 161116), (857, 94940), (940, 86557), (1010, 80558), (1714, 47470), (2020, 40279), (3428, 23735), (4285, 18988), (4747, 17140), (8570, 9494)]