139983760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{249971}}^1$

素因数の和:249991

約数の個数: 40

約数和(自身を含む): 371958336

約数和(自身を除く): 231974576

約数列:

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

約数ペア:

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