258696590

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{3329}}^1$

素因数の和:3764

約数の個数: 32

約数和(自身を含む): 491508000

約数和(自身を除く): 232811410

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 409, 818, 2045, 3329, 4090, 6658, 7771, 15542, 16645, 33290, 38855, 63251, 77710, 126502, 316255, 632510, 1361561, 2723122, 6807805, 13615610, 25869659, 51739318, 129348295, 258696590]

約数ペア:

[(1, 258696590), (2, 129348295), (5, 51739318), (10, 25869659), (19, 13615610), (38, 6807805), (95, 2723122), (190, 1361561), (409, 632510), (818, 316255), (2045, 126502), (3329, 77710), (4090, 63251), (6658, 38855), (7771, 33290), (15542, 16645)]