20039880

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23857}}^1$

素因数の和:23878

約数の個数: 64

約数和(自身を含む): 68711040

約数和(自身を除く): 48671160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 23857, 47714, 71571, 95428, 119285, 143142, 166999, 190856, 238570, 286284, 333998, 357855, 477140, 500997, 572568, 667996, 715710, 834995, 954280, 1001994, 1335992, 1431420, 1669990, 2003988, 2504985, 2862840, 3339980, 4007976, 5009970, 6679960, 10019940, 20039880]

約数ペア:

[(1, 20039880), (2, 10019940), (3, 6679960), (4, 5009970), (5, 4007976), (6, 3339980), (7, 2862840), (8, 2504985), (10, 2003988), (12, 1669990), (14, 1431420), (15, 1335992), (20, 1001994), (21, 954280), (24, 834995), (28, 715710), (30, 667996), (35, 572568), (40, 500997), (42, 477140), (56, 357855), (60, 333998), (70, 286284), (84, 238570), (105, 190856), (120, 166999), (140, 143142), (168, 119285), (210, 95428), (280, 71571), (420, 47714), (840, 23857)]