20139006905

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{1861}}^1\times {\mathrm{7489}}^1$

素因数の和:9389

約数の個数: 24

約数和(自身を含む): 25689231960

約数和(自身を除く): 5550225055

約数列:

[1, 5, 17, 85, 289, 1445, 1861, 7489, 9305, 31637, 37445, 127313, 158185, 537829, 636565, 2164321, 2689145, 10821605, 13937029, 69685145, 236929493, 1184647465, 4027801381, 20139006905]

約数ペア:

[(1, 20139006905), (5, 4027801381), (17, 1184647465), (85, 236929493), (289, 69685145), (1445, 13937029), (1861, 10821605), (7489, 2689145), (9305, 2164321), (31637, 636565), (37445, 537829), (127313, 158185)]