217639180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{26737}}^1$

素因数の和:26794

約数の個数: 48

約数和(自身を含む): 512086176

約数和(自身を除く): 294446996

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 407, 740, 814, 1628, 2035, 4070, 8140, 26737, 53474, 106948, 133685, 267370, 294107, 534740, 588214, 989269, 1176428, 1470535, 1978538, 2941070, 3957076, 4946345, 5882140, 9892690, 10881959, 19785380, 21763918, 43527836, 54409795, 108819590, 217639180]

約数ペア:

[(1, 217639180), (2, 108819590), (4, 54409795), (5, 43527836), (10, 21763918), (11, 19785380), (20, 10881959), (22, 9892690), (37, 5882140), (44, 4946345), (55, 3957076), (74, 2941070), (110, 1978538), (148, 1470535), (185, 1176428), (220, 989269), (370, 588214), (407, 534740), (740, 294107), (814, 267370), (1628, 133685), (2035, 106948), (4070, 53474), (8140, 26737)]