636688420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{661}}^1\times {\mathrm{2833}}^1$

素因数の和:3520

約数の個数: 48

約数和(自身を含む): 1418337648

約数和(自身を除く): 781649228

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 661, 1322, 2644, 2833, 3305, 5666, 6610, 11237, 11332, 13220, 14165, 22474, 28330, 44948, 48161, 56185, 56660, 96322, 112370, 192644, 224740, 240805, 481610, 963220, 1872613, 3745226, 7490452, 9363065, 18726130, 31834421, 37452260, 63668842, 127337684, 159172105, 318344210, 636688420]

約数ペア:

[(1, 636688420), (2, 318344210), (4, 159172105), (5, 127337684), (10, 63668842), (17, 37452260), (20, 31834421), (34, 18726130), (68, 9363065), (85, 7490452), (170, 3745226), (340, 1872613), (661, 963220), (1322, 481610), (2644, 240805), (2833, 224740), (3305, 192644), (5666, 112370), (6610, 96322), (11237, 56660), (11332, 56185), (13220, 48161), (14165, 44948), (22474, 28330)]