261821268

素因数分解:

$2^2\times 3^3\times {\mathrm{89}}^1\times {\mathrm{27239}}^1$

素因数の和:27341

約数の個数: 48

約数和(自身を含む): 686448000

約数和(自身を除く): 424626732

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 89, 108, 178, 267, 356, 534, 801, 1068, 1602, 2403, 3204, 4806, 9612, 27239, 54478, 81717, 108956, 163434, 245151, 326868, 490302, 735453, 980604, 1470906, 2424271, 2941812, 4848542, 7272813, 9697084, 14545626, 21818439, 29091252, 43636878, 65455317, 87273756, 130910634, 261821268]

約数ペア:

[(1, 261821268), (2, 130910634), (3, 87273756), (4, 65455317), (6, 43636878), (9, 29091252), (12, 21818439), (18, 14545626), (27, 9697084), (36, 7272813), (54, 4848542), (89, 2941812), (108, 2424271), (178, 1470906), (267, 980604), (356, 735453), (534, 490302), (801, 326868), (1068, 245151), (1602, 163434), (2403, 108956), (3204, 81717), (4806, 54478), (9612, 27239)]