259811440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{463949}}^1$

素因数の和:463969

約数の個数: 40

約数和(自身を含む): 690357600

約数和(自身を除く): 430546160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 463949, 927898, 1855796, 2319745, 3247643, 3711592, 4639490, 6495286, 7423184, 9278980, 12990572, 16238215, 18557960, 25981144, 32476430, 37115920, 51962288, 64952860, 129905720, 259811440]

約数ペア:

[(1, 259811440), (2, 129905720), (4, 64952860), (5, 51962288), (7, 37115920), (8, 32476430), (10, 25981144), (14, 18557960), (16, 16238215), (20, 12990572), (28, 9278980), (35, 7423184), (40, 6495286), (56, 4639490), (70, 3711592), (80, 3247643), (112, 2319745), (140, 1855796), (280, 927898), (560, 463949)]