20161777400

素因数分解:

$2^3\times 5^2\times {\mathrm{277}}^1\times {\mathrm{439}}^1\times {\mathrm{829}}^1$

素因数の和:1561

約数の個数: 96

約数和(自身を含む): 47209404000

約数和(自身を除く): 27047626600

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 277, 439, 554, 829, 878, 1108, 1385, 1658, 1756, 2195, 2216, 2770, 3316, 3512, 4145, 4390, 5540, 6632, 6925, 8290, 8780, 10975, 11080, 13850, 16580, 17560, 20725, 21950, 27700, 33160, 41450, 43900, 55400, 82900, 87800, 121603, 165800, 229633, 243206, 363931, 459266, 486412, 608015, 727862, 918532, 972824, 1148165, 1216030, 1455724, 1819655, 1837064, 2296330, 2432060, 2911448, 3040075, 3639310, 4592660, 4864120, 5740825, 6080150, 7278620, 9098275, 9185320, 11481650, 12160300, 14557240, 18196550, 22963300, 24320600, 36393100, 45926600, 72786200, 100808887, 201617774, 403235548, 504044435, 806471096, 1008088870, 2016177740, 2520222175, 4032355480, 5040444350, 10080888700, 20161777400]

約数ペア:

[(1, 20161777400), (2, 10080888700), (4, 5040444350), (5, 4032355480), (8, 2520222175), (10, 2016177740), (20, 1008088870), (25, 806471096), (40, 504044435), (50, 403235548), (100, 201617774), (200, 100808887), (277, 72786200), (439, 45926600), (554, 36393100), (829, 24320600), (878, 22963300), (1108, 18196550), (1385, 14557240), (1658, 12160300), (1756, 11481650), (2195, 9185320), (2216, 9098275), (2770, 7278620), (3316, 6080150), (3512, 5740825), (4145, 4864120), (4390, 4592660), (5540, 3639310), (6632, 3040075), (6925, 2911448), (8290, 2432060), (8780, 2296330), (10975, 1837064), (11080, 1819655), (13850, 1455724), (16580, 1216030), (17560, 1148165), (20725, 972824), (21950, 918532), (27700, 727862), (33160, 608015), (41450, 486412), (43900, 459266), (55400, 363931), (82900, 243206), (87800, 229633), (121603, 165800)]