81780516

素因数分解:

$2^2\times 3^4\times {\mathrm{252409}}^1$

素因数の和:252425

約数の個数: 30

約数和(自身を含む): 213791270

約数和(自身を除く): 132010754

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 324, 252409, 504818, 757227, 1009636, 1514454, 2271681, 3028908, 4543362, 6815043, 9086724, 13630086, 20445129, 27260172, 40890258, 81780516]

約数ペア:

[(1, 81780516), (2, 40890258), (3, 27260172), (4, 20445129), (6, 13630086), (9, 9086724), (12, 6815043), (18, 4543362), (27, 3028908), (36, 2271681), (54, 1514454), (81, 1009636), (108, 757227), (162, 504818), (324, 252409)]