219780560

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{1553}}^1$

素因数の和:1656

約数の個数: 80

約数和(自身を含む): 537621840

約数和(自身を除く): 317841280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 40, 58, 61, 80, 116, 122, 145, 232, 244, 290, 305, 464, 488, 580, 610, 976, 1160, 1220, 1553, 1769, 2320, 2440, 3106, 3538, 4880, 6212, 7076, 7765, 8845, 12424, 14152, 15530, 17690, 24848, 28304, 31060, 35380, 45037, 62120, 70760, 90074, 94733, 124240, 141520, 180148, 189466, 225185, 360296, 378932, 450370, 473665, 720592, 757864, 900740, 947330, 1515728, 1801480, 1894660, 2747257, 3602960, 3789320, 5494514, 7578640, 10989028, 13736285, 21978056, 27472570, 43956112, 54945140, 109890280, 219780560]

約数ペア:

[(1, 219780560), (2, 109890280), (4, 54945140), (5, 43956112), (8, 27472570), (10, 21978056), (16, 13736285), (20, 10989028), (29, 7578640), (40, 5494514), (58, 3789320), (61, 3602960), (80, 2747257), (116, 1894660), (122, 1801480), (145, 1515728), (232, 947330), (244, 900740), (290, 757864), (305, 720592), (464, 473665), (488, 450370), (580, 378932), (610, 360296), (976, 225185), (1160, 189466), (1220, 180148), (1553, 141520), (1769, 124240), (2320, 94733), (2440, 90074), (3106, 70760), (3538, 62120), (4880, 45037), (6212, 35380), (7076, 31060), (7765, 28304), (8845, 24848), (12424, 17690), (14152, 15530)]