20161914920720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27983}}^1\times {\mathrm{474017}}^1$

素因数の和:502032

約数の個数: 80

約数和(自身を含む): 49345501328640

約数和(自身を除く): 29183586407920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 27983, 55966, 111932, 139915, 223864, 279830, 447728, 474017, 531677, 559660, 948034, 1063354, 1119320, 1896068, 2126708, 2238640, 2370085, 2658385, 3792136, 4253416, 4740170, 5316770, 7584272, 8506832, 9006323, 9480340, 10633540, 18012646, 18960680, 21267080, 36025292, 37921360, 42534160, 45031615, 72050584, 90063230, 144101168, 180126460, 360252920, 720505840, 13264417711, 26528835422, 53057670844, 66322088555, 106115341688, 132644177110, 212230683376, 252023936509, 265288354220, 504047873018, 530576708440, 1008095746036, 1061153416880, 1260119682545, 2016191492072, 2520239365090, 4032382984144, 5040478730180, 10080957460360, 20161914920720]

約数ペア:

[(1, 20161914920720), (2, 10080957460360), (4, 5040478730180), (5, 4032382984144), (8, 2520239365090), (10, 2016191492072), (16, 1260119682545), (19, 1061153416880), (20, 1008095746036), (38, 530576708440), (40, 504047873018), (76, 265288354220), (80, 252023936509), (95, 212230683376), (152, 132644177110), (190, 106115341688), (304, 66322088555), (380, 53057670844), (760, 26528835422), (1520, 13264417711), (27983, 720505840), (55966, 360252920), (111932, 180126460), (139915, 144101168), (223864, 90063230), (279830, 72050584), (447728, 45031615), (474017, 42534160), (531677, 37921360), (559660, 36025292), (948034, 21267080), (1063354, 18960680), (1119320, 18012646), (1896068, 10633540), (2126708, 9480340), (2238640, 9006323), (2370085, 8506832), (2658385, 7584272), (3792136, 5316770), (4253416, 4740170)]