81876310

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{62501}}^1$

素因数の和:62639

約数の個数: 16

約数和(自身を含む): 148504752

約数和(自身を除く): 66628442

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 62501, 125002, 312505, 625010, 8187631, 16375262, 40938155, 81876310]

約数ペア:

[(1, 81876310), (2, 40938155), (5, 16375262), (10, 8187631), (131, 625010), (262, 312505), (655, 125002), (1310, 62501)]