81388755

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{5273}}^1$

素因数の和:5305

約数の個数: 48

約数和(自身を含む): 164548800

約数和(自身を除く): 83160045

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1715, 2205, 3087, 5145, 5273, 15435, 15819, 26365, 36911, 47457, 79095, 110733, 184555, 237285, 258377, 332199, 553665, 775131, 1291885, 1660995, 1808639, 2325393, 3875655, 5425917, 9043195, 11626965, 16277751, 27129585, 81388755]

約数ペア:

[(1, 81388755), (3, 27129585), (5, 16277751), (7, 11626965), (9, 9043195), (15, 5425917), (21, 3875655), (35, 2325393), (45, 1808639), (49, 1660995), (63, 1291885), (105, 775131), (147, 553665), (245, 332199), (315, 258377), (343, 237285), (441, 184555), (735, 110733), (1029, 79095), (1715, 47457), (2205, 36911), (3087, 26365), (5145, 15819), (5273, 15435)]