20781273888

素因数分解:

$2^5\times 3^2\times {\mathrm{199}}^1\times {\mathrm{362599}}^1$

素因数の和:362814

約数の個数: 72

約数和(自身を含む): 59393880000

約数和(自身を除く): 38612606112

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 199, 288, 398, 597, 796, 1194, 1592, 1791, 2388, 3184, 3582, 4776, 6368, 7164, 9552, 14328, 19104, 28656, 57312, 362599, 725198, 1087797, 1450396, 2175594, 2900792, 3263391, 4351188, 5801584, 6526782, 8702376, 11603168, 13053564, 17404752, 26107128, 34809504, 52214256, 72157201, 104428512, 144314402, 216471603, 288628804, 432943206, 577257608, 649414809, 865886412, 1154515216, 1298829618, 1731772824, 2309030432, 2597659236, 3463545648, 5195318472, 6927091296, 10390636944, 20781273888]

約数ペア:

[(1, 20781273888), (2, 10390636944), (3, 6927091296), (4, 5195318472), (6, 3463545648), (8, 2597659236), (9, 2309030432), (12, 1731772824), (16, 1298829618), (18, 1154515216), (24, 865886412), (32, 649414809), (36, 577257608), (48, 432943206), (72, 288628804), (96, 216471603), (144, 144314402), (199, 104428512), (288, 72157201), (398, 52214256), (597, 34809504), (796, 26107128), (1194, 17404752), (1592, 13053564), (1791, 11603168), (2388, 8702376), (3184, 6526782), (3582, 5801584), (4776, 4351188), (6368, 3263391), (7164, 2900792), (9552, 2175594), (14328, 1450396), (19104, 1087797), (28656, 725198), (57312, 362599)]