261998695

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{809}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 379468800

約数和(自身を除く): 117470105

約数列:

[1, 5, 7, 19, 35, 95, 133, 487, 665, 809, 2435, 3409, 4045, 5663, 9253, 15371, 17045, 28315, 46265, 64771, 76855, 107597, 323855, 393983, 537985, 1969915, 2757881, 7485677, 13789405, 37428385, 52399739, 261998695]

約数ペア:

[(1, 261998695), (5, 52399739), (7, 37428385), (19, 13789405), (35, 7485677), (95, 2757881), (133, 1969915), (487, 537985), (665, 393983), (809, 323855), (2435, 107597), (3409, 76855), (4045, 64771), (5663, 46265), (9253, 28315), (15371, 17045)]