90172280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{919}}^1$

素因数の和:1164

約数の個数: 64

約数和(自身を含む): 222566400

約数和(自身を除く): 132394120

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 223, 440, 446, 892, 919, 1115, 1784, 1838, 2230, 2453, 3676, 4460, 4595, 4906, 7352, 8920, 9190, 9812, 10109, 12265, 18380, 19624, 20218, 24530, 36760, 40436, 49060, 50545, 80872, 98120, 101090, 202180, 204937, 404360, 409874, 819748, 1024685, 1639496, 2049370, 2254307, 4098740, 4508614, 8197480, 9017228, 11271535, 18034456, 22543070, 45086140, 90172280]

約数ペア:

[(1, 90172280), (2, 45086140), (4, 22543070), (5, 18034456), (8, 11271535), (10, 9017228), (11, 8197480), (20, 4508614), (22, 4098740), (40, 2254307), (44, 2049370), (55, 1639496), (88, 1024685), (110, 819748), (220, 409874), (223, 404360), (440, 204937), (446, 202180), (892, 101090), (919, 98120), (1115, 80872), (1784, 50545), (1838, 49060), (2230, 40436), (2453, 36760), (3676, 24530), (4460, 20218), (4595, 19624), (4906, 18380), (7352, 12265), (8920, 10109), (9190, 9812)]