28735840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{25657}}^1$

素因数の和:25679

約数の個数: 48

約数和(自身を含む): 77589792

約数和(自身を除く): 48853952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 25657, 51314, 102628, 128285, 179599, 205256, 256570, 359198, 410512, 513140, 718396, 821024, 897995, 1026280, 1436792, 1795990, 2052560, 2873584, 3591980, 4105120, 5747168, 7183960, 14367920, 28735840]

約数ペア:

[(1, 28735840), (2, 14367920), (4, 7183960), (5, 5747168), (7, 4105120), (8, 3591980), (10, 2873584), (14, 2052560), (16, 1795990), (20, 1436792), (28, 1026280), (32, 897995), (35, 821024), (40, 718396), (56, 513140), (70, 410512), (80, 359198), (112, 256570), (140, 205256), (160, 179599), (224, 128285), (280, 102628), (560, 51314), (1120, 25657)]