68642990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17033}}^1$

素因数の和:17084

約数の個数: 32

約数和(自身を含む): 137362176

約数和(自身を除く): 68719186

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17033, 34066, 85165, 170330, 221429, 442858, 528023, 1056046, 1107145, 2214290, 2640115, 5280230, 6864299, 13728598, 34321495, 68642990]

約数ペア:

[(1, 68642990), (2, 34321495), (5, 13728598), (10, 6864299), (13, 5280230), (26, 2640115), (31, 2214290), (62, 1107145), (65, 1056046), (130, 528023), (155, 442858), (310, 221429), (403, 170330), (806, 85165), (2015, 34066), (4030, 17033)]