21875040

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1381}}^1$

素因数の和:1413

約数の個数: 144

約数和(自身を含む): 81493776

約数和(自身を除く): 59618736

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 198, 220, 240, 264, 288, 330, 352, 360, 396, 440, 480, 495, 528, 660, 720, 792, 880, 990, 1056, 1320, 1381, 1440, 1584, 1760, 1980, 2640, 2762, 3168, 3960, 4143, 5280, 5524, 6905, 7920, 8286, 11048, 12429, 13810, 15191, 15840, 16572, 20715, 22096, 24858, 27620, 30382, 33144, 41430, 44192, 45573, 49716, 55240, 60764, 62145, 66288, 75955, 82860, 91146, 99432, 110480, 121528, 124290, 132576, 136719, 151910, 165720, 182292, 198864, 220960, 227865, 243056, 248580, 273438, 303820, 331440, 364584, 397728, 455730, 486112, 497160, 546876, 607640, 662880, 683595, 729168, 911460, 994320, 1093752, 1215280, 1367190, 1458336, 1822920, 1988640, 2187504, 2430560, 2734380, 3645840, 4375008, 5468760, 7291680, 10937520, 21875040]

約数ペア:

[(1, 21875040), (2, 10937520), (3, 7291680), (4, 5468760), (5, 4375008), (6, 3645840), (8, 2734380), (9, 2430560), (10, 2187504), (11, 1988640), (12, 1822920), (15, 1458336), (16, 1367190), (18, 1215280), (20, 1093752), (22, 994320), (24, 911460), (30, 729168), (32, 683595), (33, 662880), (36, 607640), (40, 546876), (44, 497160), (45, 486112), (48, 455730), (55, 397728), (60, 364584), (66, 331440), (72, 303820), (80, 273438), (88, 248580), (90, 243056), (96, 227865), (99, 220960), (110, 198864), (120, 182292), (132, 165720), (144, 151910), (160, 136719), (165, 132576), (176, 124290), (180, 121528), (198, 110480), (220, 99432), (240, 91146), (264, 82860), (288, 75955), (330, 66288), (352, 62145), (360, 60764), (396, 55240), (440, 49716), (480, 45573), (495, 44192), (528, 41430), (660, 33144), (720, 30382), (792, 27620), (880, 24858), (990, 22096), (1056, 20715), (1320, 16572), (1381, 15840), (1440, 15191), (1584, 13810), (1760, 12429), (1980, 11048), (2640, 8286), (2762, 7920), (3168, 6905), (3960, 5524), (4143, 5280)]