654075520

素因数分解:

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

素因数の和:20890

約数の個数: 96

約数和(自身を含む): 1819026180

約数和(自身を除く): 1164950660

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 128, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 640, 784, 896, 980, 1120, 1568, 1960, 2240, 3136, 3920, 4480, 6272, 7840, 15680, 20857, 31360, 41714, 83428, 104285, 145999, 166856, 208570, 291998, 333712, 417140, 583996, 667424, 729995, 834280, 1021993, 1167992, 1334848, 1459990, 1668560, 2043986, 2335984, 2669696, 2919980, 3337120, 4087972, 4671968, 5109965, 5839960, 6674240, 8175944, 9343936, 10219930, 11679920, 13348480, 16351888, 18687872, 20439860, 23359840, 32703776, 40879720, 46719680, 65407552, 81759440, 93439360, 130815104, 163518880, 327037760, 654075520]

約数ペア:

[(1, 654075520), (2, 327037760), (4, 163518880), (5, 130815104), (7, 93439360), (8, 81759440), (10, 65407552), (14, 46719680), (16, 40879720), (20, 32703776), (28, 23359840), (32, 20439860), (35, 18687872), (40, 16351888), (49, 13348480), (56, 11679920), (64, 10219930), (70, 9343936), (80, 8175944), (98, 6674240), (112, 5839960), (128, 5109965), (140, 4671968), (160, 4087972), (196, 3337120), (224, 2919980), (245, 2669696), (280, 2335984), (320, 2043986), (392, 1668560), (448, 1459990), (490, 1334848), (560, 1167992), (640, 1021993), (784, 834280), (896, 729995), (980, 667424), (1120, 583996), (1568, 417140), (1960, 333712), (2240, 291998), (3136, 208570), (3920, 166856), (4480, 145999), (6272, 104285), (7840, 83428), (15680, 41714), (20857, 31360)]