25679920

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{6551}}^1$

素因数の和:6578

約数の個数: 60

約数和(自身を含む): 69464304

約数和(自身を除く): 43784384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 6551, 13102, 26204, 32755, 45857, 52408, 65510, 91714, 104816, 131020, 183428, 229285, 262040, 320999, 366856, 458570, 524080, 641998, 733712, 917140, 1283996, 1604995, 1834280, 2567992, 3209990, 3668560, 5135984, 6419980, 12839960, 25679920]

約数ペア:

[(1, 25679920), (2, 12839960), (4, 6419980), (5, 5135984), (7, 3668560), (8, 3209990), (10, 2567992), (14, 1834280), (16, 1604995), (20, 1283996), (28, 917140), (35, 733712), (40, 641998), (49, 524080), (56, 458570), (70, 366856), (80, 320999), (98, 262040), (112, 229285), (140, 183428), (196, 131020), (245, 104816), (280, 91714), (392, 65510), (490, 52408), (560, 45857), (784, 32755), (980, 26204), (1960, 13102), (3920, 6551)]