261031736290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{64772143}}^1$

素因数の和:64772194

約数の個数: 32

約数和(自身を含む): 522322569216

約数和(自身を除く): 261290832926

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 64772143, 129544286, 323860715, 647721430, 842037859, 1684075718, 2007936433, 4015872866, 4210189295, 8420378590, 10039682165, 20079364330, 26103173629, 52206347258, 130515868145, 261031736290]

約数ペア:

[(1, 261031736290), (2, 130515868145), (5, 52206347258), (10, 26103173629), (13, 20079364330), (26, 10039682165), (31, 8420378590), (62, 4210189295), (65, 4015872866), (130, 2007936433), (155, 1684075718), (310, 842037859), (403, 647721430), (806, 323860715), (2015, 129544286), (4030, 64772143)]