27499780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{2551}}^1$

素因数の和:2585

約数の個数: 72

約数和(自身を含む): 73313856

約数和(自身を除く): 45814076

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2551, 2695, 5102, 5390, 10204, 10780, 12755, 17857, 25510, 28061, 35714, 51020, 56122, 71428, 89285, 112244, 124999, 140305, 178570, 196427, 249998, 280610, 357140, 392854, 499996, 561220, 624995, 785708, 982135, 1249990, 1374989, 1964270, 2499980, 2749978, 3928540, 5499956, 6874945, 13749890, 27499780]

約数ペア:

[(1, 27499780), (2, 13749890), (4, 6874945), (5, 5499956), (7, 3928540), (10, 2749978), (11, 2499980), (14, 1964270), (20, 1374989), (22, 1249990), (28, 982135), (35, 785708), (44, 624995), (49, 561220), (55, 499996), (70, 392854), (77, 357140), (98, 280610), (110, 249998), (140, 196427), (154, 178570), (196, 140305), (220, 124999), (245, 112244), (308, 89285), (385, 71428), (490, 56122), (539, 51020), (770, 35714), (980, 28061), (1078, 25510), (1540, 17857), (2156, 12755), (2551, 10780), (2695, 10204), (5102, 5390)]