28238080

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1697}}^1$

素因数の和:1731

約数の個数: 72

約数和(自身を含む): 72884952

約数和(自身を除く): 44646872

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1664, 1697, 2080, 3328, 3394, 4160, 6788, 8320, 8485, 13576, 16640, 16970, 22061, 27152, 33940, 44122, 54304, 67880, 88244, 108608, 110305, 135760, 176488, 217216, 220610, 271520, 352976, 434432, 441220, 543040, 705952, 882440, 1086080, 1411904, 1764880, 2172160, 2823808, 3529760, 5647616, 7059520, 14119040, 28238080]

約数ペア:

[(1, 28238080), (2, 14119040), (4, 7059520), (5, 5647616), (8, 3529760), (10, 2823808), (13, 2172160), (16, 1764880), (20, 1411904), (26, 1086080), (32, 882440), (40, 705952), (52, 543040), (64, 441220), (65, 434432), (80, 352976), (104, 271520), (128, 220610), (130, 217216), (160, 176488), (208, 135760), (256, 110305), (260, 108608), (320, 88244), (416, 67880), (520, 54304), (640, 44122), (832, 33940), (1040, 27152), (1280, 22061), (1664, 16970), (1697, 16640), (2080, 13576), (3328, 8485), (3394, 8320), (4160, 6788)]