320021810

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1\times {\mathrm{1811}}^1$

素因数の和:2290

約数の個数: 32

約数和(自身を含む): 591784704

約数和(自身を除く): 271762894

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 431, 862, 1811, 2155, 3622, 4310, 9055, 17671, 18110, 35342, 74251, 88355, 148502, 176710, 371255, 742510, 780541, 1561082, 3902705, 7805410, 32002181, 64004362, 160010905, 320021810]

約数ペア:

[(1, 320021810), (2, 160010905), (5, 64004362), (10, 32002181), (41, 7805410), (82, 3902705), (205, 1561082), (410, 780541), (431, 742510), (862, 371255), (1811, 176710), (2155, 148502), (3622, 88355), (4310, 74251), (9055, 35342), (17671, 18110)]