81642890

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{28447}}^1$

素因数の和:28502

約数の個数: 32

約数和(自身を含む): 172053504

約数和(自身を除く): 90410614

約数列:

[1, 2, 5, 7, 10, 14, 35, 41, 70, 82, 205, 287, 410, 574, 1435, 2870, 28447, 56894, 142235, 199129, 284470, 398258, 995645, 1166327, 1991290, 2332654, 5831635, 8164289, 11663270, 16328578, 40821445, 81642890]

約数ペア:

[(1, 81642890), (2, 40821445), (5, 16328578), (7, 11663270), (10, 8164289), (14, 5831635), (35, 2332654), (41, 1991290), (70, 1166327), (82, 995645), (205, 398258), (287, 284470), (410, 199129), (574, 142235), (1435, 56894), (2870, 28447)]