28129860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{14207}}^1$

素因数の和:14233

約数の個数: 72

約数和(自身を含む): 93090816

約数和(自身を除く): 64960956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 14207, 28414, 42621, 56828, 71035, 85242, 127863, 142070, 156277, 170484, 213105, 255726, 284140, 312554, 426210, 468831, 511452, 625108, 639315, 781385, 852420, 937662, 1278630, 1406493, 1562770, 1875324, 2344155, 2557260, 2812986, 3125540, 4688310, 5625972, 7032465, 9376620, 14064930, 28129860]

約数ペア:

[(1, 28129860), (2, 14064930), (3, 9376620), (4, 7032465), (5, 5625972), (6, 4688310), (9, 3125540), (10, 2812986), (11, 2557260), (12, 2344155), (15, 1875324), (18, 1562770), (20, 1406493), (22, 1278630), (30, 937662), (33, 852420), (36, 781385), (44, 639315), (45, 625108), (55, 511452), (60, 468831), (66, 426210), (90, 312554), (99, 284140), (110, 255726), (132, 213105), (165, 170484), (180, 156277), (198, 142070), (220, 127863), (330, 85242), (396, 71035), (495, 56828), (660, 42621), (990, 28414), (1980, 14207)]