1800120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{2143}}^1$

素因数の和:2164

約数の個数: 64

約数和(自身を含む): 6174720

約数和(自身を除く): 4374600

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, 2143, 4286, 6429, 8572, 10715, 12858, 15001, 17144, 21430, 25716, 30002, 32145, 42860, 45003, 51432, 60004, 64290, 75005, 85720, 90006, 120008, 128580, 150010, 180012, 225015, 257160, 300020, 360024, 450030, 600040, 900060, 1800120]

約数ペア:

[(1, 1800120), (2, 900060), (3, 600040), (4, 450030), (5, 360024), (6, 300020), (7, 257160), (8, 225015), (10, 180012), (12, 150010), (14, 128580), (15, 120008), (20, 90006), (21, 85720), (24, 75005), (28, 64290), (30, 60004), (35, 51432), (40, 45003), (42, 42860), (56, 32145), (60, 30002), (70, 25716), (84, 21430), (105, 17144), (120, 15001), (140, 12858), (168, 10715), (210, 8572), (280, 6429), (420, 4286), (840, 2143)]