19547880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{251}}^1$

素因数の和:335

約数の個数: 128

約数和(自身を含む): 65318400

約数和(自身を除く): 45770520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 59, 60, 66, 88, 110, 118, 120, 132, 165, 177, 220, 236, 251, 264, 295, 330, 354, 440, 472, 502, 590, 649, 660, 708, 753, 885, 1004, 1180, 1255, 1298, 1320, 1416, 1506, 1770, 1947, 2008, 2360, 2510, 2596, 2761, 3012, 3245, 3540, 3765, 3894, 5020, 5192, 5522, 6024, 6490, 7080, 7530, 7788, 8283, 9735, 10040, 11044, 12980, 13805, 14809, 15060, 15576, 16566, 19470, 22088, 25960, 27610, 29618, 30120, 33132, 38940, 41415, 44427, 55220, 59236, 66264, 74045, 77880, 82830, 88854, 110440, 118472, 148090, 162899, 165660, 177708, 222135, 296180, 325798, 331320, 355416, 444270, 488697, 592360, 651596, 814495, 888540, 977394, 1303192, 1628990, 1777080, 1954788, 2443485, 3257980, 3909576, 4886970, 6515960, 9773940, 19547880]

約数ペア:

[(1, 19547880), (2, 9773940), (3, 6515960), (4, 4886970), (5, 3909576), (6, 3257980), (8, 2443485), (10, 1954788), (11, 1777080), (12, 1628990), (15, 1303192), (20, 977394), (22, 888540), (24, 814495), (30, 651596), (33, 592360), (40, 488697), (44, 444270), (55, 355416), (59, 331320), (60, 325798), (66, 296180), (88, 222135), (110, 177708), (118, 165660), (120, 162899), (132, 148090), (165, 118472), (177, 110440), (220, 88854), (236, 82830), (251, 77880), (264, 74045), (295, 66264), (330, 59236), (354, 55220), (440, 44427), (472, 41415), (502, 38940), (590, 33132), (649, 30120), (660, 29618), (708, 27610), (753, 25960), (885, 22088), (1004, 19470), (1180, 16566), (1255, 15576), (1298, 15060), (1320, 14809), (1416, 13805), (1506, 12980), (1770, 11044), (1947, 10040), (2008, 9735), (2360, 8283), (2510, 7788), (2596, 7530), (2761, 7080), (3012, 6490), (3245, 6024), (3540, 5522), (3765, 5192), (3894, 5020)]