81871310

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{264101}}^1$

素因数の和:264139

約数の個数: 16

約数和(自身を含む): 152122752

約数和(自身を除く): 70251442

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 264101, 528202, 1320505, 2641010, 8187131, 16374262, 40935655, 81871310]

約数ペア:

[(1, 81871310), (2, 40935655), (5, 16374262), (10, 8187131), (31, 2641010), (62, 1320505), (155, 528202), (310, 264101)]