51359840

素因数分解:

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

素因数の和:6580

約数の個数: 72

約数和(自身を含む): 141169392

約数和(自身を除く): 89809552

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 6551, 7840, 13102, 26204, 32755, 45857, 52408, 65510, 91714, 104816, 131020, 183428, 209632, 229285, 262040, 320999, 366856, 458570, 524080, 641998, 733712, 917140, 1048160, 1283996, 1467424, 1604995, 1834280, 2567992, 3209990, 3668560, 5135984, 6419980, 7337120, 10271968, 12839960, 25679920, 51359840]

約数ペア:

[(1, 51359840), (2, 25679920), (4, 12839960), (5, 10271968), (7, 7337120), (8, 6419980), (10, 5135984), (14, 3668560), (16, 3209990), (20, 2567992), (28, 1834280), (32, 1604995), (35, 1467424), (40, 1283996), (49, 1048160), (56, 917140), (70, 733712), (80, 641998), (98, 524080), (112, 458570), (140, 366856), (160, 320999), (196, 262040), (224, 229285), (245, 209632), (280, 183428), (392, 131020), (490, 104816), (560, 91714), (784, 65510), (980, 52408), (1120, 45857), (1568, 32755), (1960, 26204), (3920, 13102), (6551, 7840)]