20177854984

素因数分解:

$2^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1\times {\mathrm{31721}}^1$

素因数の和:32078

約数の個数: 64

約数和(自身を含む): 44552914560

約数和(自身を除く): 24375059576

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 56, 74, 148, 259, 296, 307, 518, 614, 1036, 1228, 2072, 2149, 2456, 4298, 8596, 11359, 17192, 22718, 31721, 45436, 63442, 79513, 90872, 126884, 159026, 222047, 253768, 318052, 444094, 636104, 888188, 1173677, 1776376, 2347354, 4694708, 8215739, 9389416, 9738347, 16431478, 19476694, 32862956, 38953388, 65725912, 68168429, 77906776, 136336858, 272673716, 360318839, 545347432, 720637678, 1441275356, 2522231873, 2882550712, 5044463746, 10088927492, 20177854984]

約数ペア:

[(1, 20177854984), (2, 10088927492), (4, 5044463746), (7, 2882550712), (8, 2522231873), (14, 1441275356), (28, 720637678), (37, 545347432), (56, 360318839), (74, 272673716), (148, 136336858), (259, 77906776), (296, 68168429), (307, 65725912), (518, 38953388), (614, 32862956), (1036, 19476694), (1228, 16431478), (2072, 9738347), (2149, 9389416), (2456, 8215739), (4298, 4694708), (8596, 2347354), (11359, 1776376), (17192, 1173677), (22718, 888188), (31721, 636104), (45436, 444094), (63442, 318052), (79513, 253768), (90872, 222047), (126884, 159026)]