27720

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1$

素因数の和:35

約数の個数: 96

約数和(自身を含む): 112320

約数和(自身を除く): 84600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 24, 28, 30, 33, 35, 36, 40, 42, 44, 45, 55, 56, 60, 63, 66, 70, 72, 77, 84, 88, 90, 99, 105, 110, 120, 126, 132, 140, 154, 165, 168, 180, 198, 210, 220, 231, 252, 264, 280, 308, 315, 330, 360, 385, 396, 420, 440, 462, 495, 504, 616, 630, 660, 693, 770, 792, 840, 924, 990, 1155, 1260, 1320, 1386, 1540, 1848, 1980, 2310, 2520, 2772, 3080, 3465, 3960, 4620, 5544, 6930, 9240, 13860, 27720]

約数ペア:

[(1, 27720), (2, 13860), (3, 9240), (4, 6930), (5, 5544), (6, 4620), (7, 3960), (8, 3465), (9, 3080), (10, 2772), (11, 2520), (12, 2310), (14, 1980), (15, 1848), (18, 1540), (20, 1386), (21, 1320), (22, 1260), (24, 1155), (28, 990), (30, 924), (33, 840), (35, 792), (36, 770), (40, 693), (42, 660), (44, 630), (45, 616), (55, 504), (56, 495), (60, 462), (63, 440), (66, 420), (70, 396), (72, 385), (77, 360), (84, 330), (88, 315), (90, 308), (99, 280), (105, 264), (110, 252), (120, 231), (126, 220), (132, 210), (140, 198), (154, 180), (165, 168)]