249959920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2243}}^1$

素因数の和:2462

約数の個数: 80

約数和(自身を含む): 667814400

約数和(自身を除く): 417854480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 796, 995, 1393, 1592, 1990, 2243, 2786, 3184, 3980, 4486, 5572, 6965, 7960, 8972, 11144, 11215, 13930, 15701, 15920, 17944, 22288, 22430, 27860, 31402, 35888, 44860, 55720, 62804, 78505, 89720, 111440, 125608, 157010, 179440, 251216, 314020, 446357, 628040, 892714, 1256080, 1785428, 2231785, 3124499, 3570856, 4463570, 6248998, 7141712, 8927140, 12497996, 15622495, 17854280, 24995992, 31244990, 35708560, 49991984, 62489980, 124979960, 249959920]

約数ペア:

[(1, 249959920), (2, 124979960), (4, 62489980), (5, 49991984), (7, 35708560), (8, 31244990), (10, 24995992), (14, 17854280), (16, 15622495), (20, 12497996), (28, 8927140), (35, 7141712), (40, 6248998), (56, 4463570), (70, 3570856), (80, 3124499), (112, 2231785), (140, 1785428), (199, 1256080), (280, 892714), (398, 628040), (560, 446357), (796, 314020), (995, 251216), (1393, 179440), (1592, 157010), (1990, 125608), (2243, 111440), (2786, 89720), (3184, 78505), (3980, 62804), (4486, 55720), (5572, 44860), (6965, 35888), (7960, 31402), (8972, 27860), (11144, 22430), (11215, 22288), (13930, 17944), (15701, 15920)]