163518880

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{20857}}^1$

素因数の和:20886

約数の個数: 72

約数和(自身を含む): 449406468

約数和(自身を除く): 285887588

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, 7840, 20857, 41714, 83428, 104285, 145999, 166856, 208570, 291998, 333712, 417140, 583996, 667424, 729995, 834280, 1021993, 1167992, 1459990, 1668560, 2043986, 2335984, 2919980, 3337120, 4087972, 4671968, 5109965, 5839960, 8175944, 10219930, 11679920, 16351888, 20439860, 23359840, 32703776, 40879720, 81759440, 163518880]

約数ペア:

[(1, 163518880), (2, 81759440), (4, 40879720), (5, 32703776), (7, 23359840), (8, 20439860), (10, 16351888), (14, 11679920), (16, 10219930), (20, 8175944), (28, 5839960), (32, 5109965), (35, 4671968), (40, 4087972), (49, 3337120), (56, 2919980), (70, 2335984), (80, 2043986), (98, 1668560), (112, 1459990), (140, 1167992), (160, 1021993), (196, 834280), (224, 729995), (245, 667424), (280, 583996), (392, 417140), (490, 333712), (560, 291998), (784, 208570), (980, 166856), (1120, 145999), (1568, 104285), (1960, 83428), (3920, 41714), (7840, 20857)]