28171440

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3557}}^1$

素因数の和:3587

約数の個数: 120

約数和(自身を含む): 103238928

約数和(自身を除く): 75067488

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, 3557, 3960, 7114, 7920, 10671, 14228, 17785, 21342, 28456, 32013, 35570, 39127, 42684, 53355, 56912, 64026, 71140, 78254, 85368, 106710, 117381, 128052, 142280, 156508, 160065, 170736, 195635, 213420, 234762, 256104, 284560, 313016, 320130, 352143, 391270, 426840, 469524, 512208, 586905, 626032, 640260, 704286, 782540, 853680, 939048, 1173810, 1280520, 1408572, 1565080, 1760715, 1878096, 2347620, 2561040, 2817144, 3130160, 3521430, 4695240, 5634288, 7042860, 9390480, 14085720, 28171440]

約数ペア:

[(1, 28171440), (2, 14085720), (3, 9390480), (4, 7042860), (5, 5634288), (6, 4695240), (8, 3521430), (9, 3130160), (10, 2817144), (11, 2561040), (12, 2347620), (15, 1878096), (16, 1760715), (18, 1565080), (20, 1408572), (22, 1280520), (24, 1173810), (30, 939048), (33, 853680), (36, 782540), (40, 704286), (44, 640260), (45, 626032), (48, 586905), (55, 512208), (60, 469524), (66, 426840), (72, 391270), (80, 352143), (88, 320130), (90, 313016), (99, 284560), (110, 256104), (120, 234762), (132, 213420), (144, 195635), (165, 170736), (176, 160065), (180, 156508), (198, 142280), (220, 128052), (240, 117381), (264, 106710), (330, 85368), (360, 78254), (396, 71140), (440, 64026), (495, 56912), (528, 53355), (660, 42684), (720, 39127), (792, 35570), (880, 32013), (990, 28456), (1320, 21342), (1584, 17785), (1980, 14228), (2640, 10671), (3557, 7920), (3960, 7114)]