11639240

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 64

約数和(自身を含む): 27466560

約数和(自身を除く): 15827320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 67, 86, 101, 134, 172, 202, 215, 268, 335, 344, 404, 430, 505, 536, 670, 808, 860, 1010, 1340, 1720, 2020, 2680, 2881, 4040, 4343, 5762, 6767, 8686, 11524, 13534, 14405, 17372, 21715, 23048, 27068, 28810, 33835, 34744, 43430, 54136, 57620, 67670, 86860, 115240, 135340, 173720, 270680, 290981, 581962, 1163924, 1454905, 2327848, 2909810, 5819620, 11639240]

約数ペア:

[(1, 11639240), (2, 5819620), (4, 2909810), (5, 2327848), (8, 1454905), (10, 1163924), (20, 581962), (40, 290981), (43, 270680), (67, 173720), (86, 135340), (101, 115240), (134, 86860), (172, 67670), (202, 57620), (215, 54136), (268, 43430), (335, 34744), (344, 33835), (404, 28810), (430, 27068), (505, 23048), (536, 21715), (670, 17372), (808, 14405), (860, 13534), (1010, 11524), (1340, 8686), (1720, 6767), (2020, 5762), (2680, 4343), (2881, 4040)]