279967520

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{249971}}^1$

素因数の和:249993

約数の個数: 48

約数和(自身を含む): 755915328

約数和(自身を除く): 475947808

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, 249971, 499942, 999884, 1249855, 1749797, 1999768, 2499710, 3499594, 3999536, 4999420, 6999188, 7999072, 8748985, 9998840, 13998376, 17497970, 19997680, 27996752, 34995940, 39995360, 55993504, 69991880, 139983760, 279967520]

約数ペア:

[(1, 279967520), (2, 139983760), (4, 69991880), (5, 55993504), (7, 39995360), (8, 34995940), (10, 27996752), (14, 19997680), (16, 17497970), (20, 13998376), (28, 9998840), (32, 8748985), (35, 7999072), (40, 6999188), (56, 4999420), (70, 3999536), (80, 3499594), (112, 2499710), (140, 1999768), (160, 1749797), (224, 1249855), (280, 999884), (560, 499942), (1120, 249971)]