21576996880

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1\times {\mathrm{28837}}^1$

素因数の和:29096

約数の個数: 80

約数和(自身を含む): 51493132800

約数和(自身を除く): 29916135920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 199, 235, 376, 398, 470, 752, 796, 940, 995, 1592, 1880, 1990, 3184, 3760, 3980, 7960, 9353, 15920, 18706, 28837, 37412, 46765, 57674, 74824, 93530, 115348, 144185, 149648, 187060, 230696, 288370, 374120, 461392, 576740, 748240, 1153480, 1355339, 2306960, 2710678, 5421356, 5738563, 6776695, 10842712, 11477126, 13553390, 21685424, 22954252, 27106780, 28692815, 45908504, 54213560, 57385630, 91817008, 108427120, 114771260, 229542520, 269712461, 459085040, 539424922, 1078849844, 1348562305, 2157699688, 2697124610, 4315399376, 5394249220, 10788498440, 21576996880]

約数ペア:

[(1, 21576996880), (2, 10788498440), (4, 5394249220), (5, 4315399376), (8, 2697124610), (10, 2157699688), (16, 1348562305), (20, 1078849844), (40, 539424922), (47, 459085040), (80, 269712461), (94, 229542520), (188, 114771260), (199, 108427120), (235, 91817008), (376, 57385630), (398, 54213560), (470, 45908504), (752, 28692815), (796, 27106780), (940, 22954252), (995, 21685424), (1592, 13553390), (1880, 11477126), (1990, 10842712), (3184, 6776695), (3760, 5738563), (3980, 5421356), (7960, 2710678), (9353, 2306960), (15920, 1355339), (18706, 1153480), (28837, 748240), (37412, 576740), (46765, 461392), (57674, 374120), (74824, 288370), (93530, 230696), (115348, 187060), (144185, 149648)]