18857520

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2381}}^1$

素因数の和:2411

約数の個数: 120

約数和(自身を含む): 69116112

約数和(自身を除く): 50258592

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, 2381, 2640, 3960, 4762, 7143, 7920, 9524, 11905, 14286, 19048, 21429, 23810, 26191, 28572, 35715, 38096, 42858, 47620, 52382, 57144, 71430, 78573, 85716, 95240, 104764, 107145, 114288, 130955, 142860, 157146, 171432, 190480, 209528, 214290, 235719, 261910, 285720, 314292, 342864, 392865, 419056, 428580, 471438, 523820, 571440, 628584, 785730, 857160, 942876, 1047640, 1178595, 1257168, 1571460, 1714320, 1885752, 2095280, 2357190, 3142920, 3771504, 4714380, 6285840, 9428760, 18857520]

約数ペア:

[(1, 18857520), (2, 9428760), (3, 6285840), (4, 4714380), (5, 3771504), (6, 3142920), (8, 2357190), (9, 2095280), (10, 1885752), (11, 1714320), (12, 1571460), (15, 1257168), (16, 1178595), (18, 1047640), (20, 942876), (22, 857160), (24, 785730), (30, 628584), (33, 571440), (36, 523820), (40, 471438), (44, 428580), (45, 419056), (48, 392865), (55, 342864), (60, 314292), (66, 285720), (72, 261910), (80, 235719), (88, 214290), (90, 209528), (99, 190480), (110, 171432), (120, 157146), (132, 142860), (144, 130955), (165, 114288), (176, 107145), (180, 104764), (198, 95240), (220, 85716), (240, 78573), (264, 71430), (330, 57144), (360, 52382), (396, 47620), (440, 42858), (495, 38096), (528, 35715), (660, 28572), (720, 26191), (792, 23810), (880, 21429), (990, 19048), (1320, 14286), (1584, 11905), (1980, 9524), (2381, 7920), (2640, 7143), (3960, 4762)]