201638560

素因数分解:

$2^5\times 5^1\times {\mathrm{1009}}^1\times {\mathrm{1249}}^1$

素因数の和:2273

約数の個数: 48

約数和(自身を含む): 477225000

約数和(自身を除く): 275586440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 1009, 1249, 2018, 2498, 4036, 4996, 5045, 6245, 8072, 9992, 10090, 12490, 16144, 19984, 20180, 24980, 32288, 39968, 40360, 49960, 80720, 99920, 161440, 199840, 1260241, 2520482, 5040964, 6301205, 10081928, 12602410, 20163856, 25204820, 40327712, 50409640, 100819280, 201638560]

約数ペア:

[(1, 201638560), (2, 100819280), (4, 50409640), (5, 40327712), (8, 25204820), (10, 20163856), (16, 12602410), (20, 10081928), (32, 6301205), (40, 5040964), (80, 2520482), (160, 1260241), (1009, 199840), (1249, 161440), (2018, 99920), (2498, 80720), (4036, 49960), (4996, 40360), (5045, 39968), (6245, 32288), (8072, 24980), (9992, 20180), (10090, 19984), (12490, 16144)]