20108880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2539}}^1$

素因数の和:2569

約数の個数: 120

約数和(自身を含む): 73700640

約数和(自身を除く): 53591760

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, 2539, 2640, 3960, 5078, 7617, 7920, 10156, 12695, 15234, 20312, 22851, 25390, 27929, 30468, 38085, 40624, 45702, 50780, 55858, 60936, 76170, 83787, 91404, 101560, 111716, 114255, 121872, 139645, 152340, 167574, 182808, 203120, 223432, 228510, 251361, 279290, 304680, 335148, 365616, 418935, 446864, 457020, 502722, 558580, 609360, 670296, 837870, 914040, 1005444, 1117160, 1256805, 1340592, 1675740, 1828080, 2010888, 2234320, 2513610, 3351480, 4021776, 5027220, 6702960, 10054440, 20108880]

約数ペア:

[(1, 20108880), (2, 10054440), (3, 6702960), (4, 5027220), (5, 4021776), (6, 3351480), (8, 2513610), (9, 2234320), (10, 2010888), (11, 1828080), (12, 1675740), (15, 1340592), (16, 1256805), (18, 1117160), (20, 1005444), (22, 914040), (24, 837870), (30, 670296), (33, 609360), (36, 558580), (40, 502722), (44, 457020), (45, 446864), (48, 418935), (55, 365616), (60, 335148), (66, 304680), (72, 279290), (80, 251361), (88, 228510), (90, 223432), (99, 203120), (110, 182808), (120, 167574), (132, 152340), (144, 139645), (165, 121872), (176, 114255), (180, 111716), (198, 101560), (220, 91404), (240, 83787), (264, 76170), (330, 60936), (360, 55858), (396, 50780), (440, 45702), (495, 40624), (528, 38085), (660, 30468), (720, 27929), (792, 25390), (880, 22851), (990, 20312), (1320, 15234), (1584, 12695), (1980, 10156), (2539, 7920), (2640, 7617), (3960, 5078)]