20215090

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{317}}^1\times {\mathrm{911}}^1$

素因数の和:1242

約数の個数: 32

約数和(自身を含む): 41762304

約数和(自身を除く): 21547214

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 317, 634, 911, 1585, 1822, 2219, 3170, 4438, 4555, 6377, 9110, 11095, 12754, 22190, 31885, 63770, 288787, 577574, 1443935, 2021509, 2887870, 4043018, 10107545, 20215090]

約数ペア:

[(1, 20215090), (2, 10107545), (5, 4043018), (7, 2887870), (10, 2021509), (14, 1443935), (35, 577574), (70, 288787), (317, 63770), (634, 31885), (911, 22190), (1585, 12754), (1822, 11095), (2219, 9110), (3170, 6377), (4438, 4555)]