18480

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1$

素因数の和:34

約数の個数: 80

約数和(自身を含む): 71424

約数和(自身を除く): 52944

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 14, 15, 16, 20, 21, 22, 24, 28, 30, 33, 35, 40, 42, 44, 48, 55, 56, 60, 66, 70, 77, 80, 84, 88, 105, 110, 112, 120, 132, 140, 154, 165, 168, 176, 210, 220, 231, 240, 264, 280, 308, 330, 336, 385, 420, 440, 462, 528, 560, 616, 660, 770, 840, 880, 924, 1155, 1232, 1320, 1540, 1680, 1848, 2310, 2640, 3080, 3696, 4620, 6160, 9240, 18480]

約数ペア:

[(1, 18480), (2, 9240), (3, 6160), (4, 4620), (5, 3696), (6, 3080), (7, 2640), (8, 2310), (10, 1848), (11, 1680), (12, 1540), (14, 1320), (15, 1232), (16, 1155), (20, 924), (21, 880), (22, 840), (24, 770), (28, 660), (30, 616), (33, 560), (35, 528), (40, 462), (42, 440), (44, 420), (48, 385), (55, 336), (56, 330), (60, 308), (66, 280), (70, 264), (77, 240), (80, 231), (84, 220), (88, 210), (105, 176), (110, 168), (112, 165), (120, 154), (132, 140)]