201390885

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1\times {\mathrm{269}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 355829760

約数和(自身を除く): 154438875

約数列:

[1, 3, 5, 9, 15, 45, 127, 131, 269, 381, 393, 635, 655, 807, 1143, 1179, 1345, 1905, 1965, 2421, 4035, 5715, 5895, 12105, 16637, 34163, 35239, 49911, 83185, 102489, 105717, 149733, 170815, 176195, 249555, 307467, 317151, 512445, 528585, 748665, 1537335, 1585755, 4475353, 13426059, 22376765, 40278177, 67130295, 201390885]

約数ペア:

[(1, 201390885), (3, 67130295), (5, 40278177), (9, 22376765), (15, 13426059), (45, 4475353), (127, 1585755), (131, 1537335), (269, 748665), (381, 528585), (393, 512445), (635, 317151), (655, 307467), (807, 249555), (1143, 176195), (1179, 170815), (1345, 149733), (1905, 105717), (1965, 102489), (2421, 83185), (4035, 49911), (5715, 35239), (5895, 34163), (12105, 16637)]