21059280

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2659}}^1$

素因数の和:2689

約数の個数: 120

約数和(自身を含む): 77182560

約数和(自身を除く): 56123280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2640, 2659, 3960, 5318, 7920, 7977, 10636, 13295, 15954, 21272, 23931, 26590, 29249, 31908, 39885, 42544, 47862, 53180, 58498, 63816, 79770, 87747, 95724, 106360, 116996, 119655, 127632, 146245, 159540, 175494, 191448, 212720, 233992, 239310, 263241, 292490, 319080, 350988, 382896, 438735, 467984, 478620, 526482, 584980, 638160, 701976, 877470, 957240, 1052964, 1169960, 1316205, 1403952, 1754940, 1914480, 2105928, 2339920, 2632410, 3509880, 4211856, 5264820, 7019760, 10529640, 21059280]

約数ペア:

[(1, 21059280), (2, 10529640), (3, 7019760), (4, 5264820), (5, 4211856), (6, 3509880), (8, 2632410), (9, 2339920), (10, 2105928), (11, 1914480), (12, 1754940), (15, 1403952), (16, 1316205), (18, 1169960), (20, 1052964), (22, 957240), (24, 877470), (30, 701976), (33, 638160), (36, 584980), (40, 526482), (44, 478620), (45, 467984), (48, 438735), (55, 382896), (60, 350988), (66, 319080), (72, 292490), (80, 263241), (88, 239310), (90, 233992), (99, 212720), (110, 191448), (120, 175494), (132, 159540), (144, 146245), (165, 127632), (176, 119655), (180, 116996), (198, 106360), (220, 95724), (240, 87747), (264, 79770), (330, 63816), (360, 58498), (396, 53180), (440, 47862), (495, 42544), (528, 39885), (660, 31908), (720, 29249), (792, 26590), (880, 23931), (990, 21272), (1320, 15954), (1584, 13295), (1980, 10636), (2640, 7977), (2659, 7920), (3960, 5318)]