20123606405

素因数分解:

$5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{367}}^1\times {\mathrm{2833}}^1$

素因数の和:3298

約数の個数: 48

約数和(自身を含む): 28534072320

約数和(自身を除く): 8410465915

約数列:

[1, 5, 7, 35, 49, 79, 245, 367, 395, 553, 1835, 2569, 2765, 2833, 3871, 12845, 14165, 17983, 19355, 19831, 28993, 89915, 99155, 138817, 144965, 202951, 223807, 694085, 1014755, 1039711, 1119035, 1420657, 1566649, 5198555, 7103285, 7277977, 7833245, 10966543, 36389885, 50945839, 54832715, 82137169, 254729195, 410685845, 574960183, 2874800915, 4024721281, 20123606405]

約数ペア:

[(1, 20123606405), (5, 4024721281), (7, 2874800915), (35, 574960183), (49, 410685845), (79, 254729195), (245, 82137169), (367, 54832715), (395, 50945839), (553, 36389885), (1835, 10966543), (2569, 7833245), (2765, 7277977), (2833, 7103285), (3871, 5198555), (12845, 1566649), (14165, 1420657), (17983, 1119035), (19355, 1039711), (19831, 1014755), (28993, 694085), (89915, 223807), (99155, 202951), (138817, 144965)]