12872360

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{167}}^1$

素因数の和:266

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 17609560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 47, 82, 94, 164, 167, 188, 205, 235, 328, 334, 376, 410, 470, 668, 820, 835, 940, 1336, 1640, 1670, 1880, 1927, 3340, 3854, 6680, 6847, 7708, 7849, 9635, 13694, 15416, 15698, 19270, 27388, 31396, 34235, 38540, 39245, 54776, 62792, 68470, 77080, 78490, 136940, 156980, 273880, 313960, 321809, 643618, 1287236, 1609045, 2574472, 3218090, 6436180, 12872360]

約数ペア:

[(1, 12872360), (2, 6436180), (4, 3218090), (5, 2574472), (8, 1609045), (10, 1287236), (20, 643618), (40, 321809), (41, 313960), (47, 273880), (82, 156980), (94, 136940), (164, 78490), (167, 77080), (188, 68470), (205, 62792), (235, 54776), (328, 39245), (334, 38540), (376, 34235), (410, 31396), (470, 27388), (668, 19270), (820, 15698), (835, 15416), (940, 13694), (1336, 9635), (1640, 7849), (1670, 7708), (1880, 6847), (1927, 6680), (3340, 3854)]