28202240

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2003}}^1$

素因数の和:2035

約数の個数: 72

約数和(自身を含む): 73731168

約数和(自身を除く): 45528928

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1408, 1760, 2003, 2816, 3520, 4006, 7040, 8012, 10015, 14080, 16024, 20030, 22033, 32048, 40060, 44066, 64096, 80120, 88132, 110165, 128192, 160240, 176264, 220330, 256384, 320480, 352528, 440660, 512768, 640960, 705056, 881320, 1281920, 1410112, 1762640, 2563840, 2820224, 3525280, 5640448, 7050560, 14101120, 28202240]

約数ペア:

[(1, 28202240), (2, 14101120), (4, 7050560), (5, 5640448), (8, 3525280), (10, 2820224), (11, 2563840), (16, 1762640), (20, 1410112), (22, 1281920), (32, 881320), (40, 705056), (44, 640960), (55, 512768), (64, 440660), (80, 352528), (88, 320480), (110, 256384), (128, 220330), (160, 176264), (176, 160240), (220, 128192), (256, 110165), (320, 88132), (352, 80120), (440, 64096), (640, 44066), (704, 40060), (880, 32048), (1280, 22033), (1408, 20030), (1760, 16024), (2003, 14080), (2816, 10015), (3520, 8012), (4006, 7040)]