27808080

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1063}}^1$

素因数の和:1188

約数の個数: 80

約数和(自身を含む): 87077760

約数和(自身を除く): 59269680

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 109, 120, 218, 240, 327, 436, 545, 654, 872, 1063, 1090, 1308, 1635, 1744, 2126, 2180, 2616, 3189, 3270, 4252, 4360, 5232, 5315, 6378, 6540, 8504, 8720, 10630, 12756, 13080, 15945, 17008, 21260, 25512, 26160, 31890, 42520, 51024, 63780, 85040, 115867, 127560, 231734, 255120, 347601, 463468, 579335, 695202, 926936, 1158670, 1390404, 1738005, 1853872, 2317340, 2780808, 3476010, 4634680, 5561616, 6952020, 9269360, 13904040, 27808080]

約数ペア:

[(1, 27808080), (2, 13904040), (3, 9269360), (4, 6952020), (5, 5561616), (6, 4634680), (8, 3476010), (10, 2780808), (12, 2317340), (15, 1853872), (16, 1738005), (20, 1390404), (24, 1158670), (30, 926936), (40, 695202), (48, 579335), (60, 463468), (80, 347601), (109, 255120), (120, 231734), (218, 127560), (240, 115867), (327, 85040), (436, 63780), (545, 51024), (654, 42520), (872, 31890), (1063, 26160), (1090, 25512), (1308, 21260), (1635, 17008), (1744, 15945), (2126, 13080), (2180, 12756), (2616, 10630), (3189, 8720), (3270, 8504), (4252, 6540), (4360, 6378), (5232, 5315)]