20173929880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{8933}}^1$

素因数の和:9101

約数の個数: 128

約数和(自身を含む): 50520697920

約数和(自身を除く): 30346768040

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 101, 104, 130, 172, 202, 215, 260, 344, 404, 430, 505, 520, 559, 808, 860, 1010, 1118, 1313, 1720, 2020, 2236, 2626, 2795, 4040, 4343, 4472, 5252, 5590, 6565, 8686, 8933, 10504, 11180, 13130, 17372, 17866, 21715, 22360, 26260, 34744, 35732, 43430, 44665, 52520, 56459, 71464, 86860, 89330, 112918, 116129, 173720, 178660, 225836, 232258, 282295, 357320, 384119, 451672, 464516, 564590, 580645, 768238, 902233, 929032, 1129180, 1161290, 1536476, 1804466, 1920595, 2258360, 2322580, 3072952, 3608932, 3841190, 4511165, 4645160, 4993547, 7217864, 7682380, 9022330, 9987094, 11729029, 15364760, 18044660, 19974188, 23458058, 24967735, 36089320, 38796019, 39948376, 46916116, 49935470, 58645145, 77592038, 93832232, 99870940, 117290290, 155184076, 193980095, 199741880, 234580580, 310368152, 387960190, 469161160, 504348247, 775920380, 1008696494, 1551840760, 2017392988, 2521741235, 4034785976, 5043482470, 10086964940, 20173929880]

約数ペア:

[(1, 20173929880), (2, 10086964940), (4, 5043482470), (5, 4034785976), (8, 2521741235), (10, 2017392988), (13, 1551840760), (20, 1008696494), (26, 775920380), (40, 504348247), (43, 469161160), (52, 387960190), (65, 310368152), (86, 234580580), (101, 199741880), (104, 193980095), (130, 155184076), (172, 117290290), (202, 99870940), (215, 93832232), (260, 77592038), (344, 58645145), (404, 49935470), (430, 46916116), (505, 39948376), (520, 38796019), (559, 36089320), (808, 24967735), (860, 23458058), (1010, 19974188), (1118, 18044660), (1313, 15364760), (1720, 11729029), (2020, 9987094), (2236, 9022330), (2626, 7682380), (2795, 7217864), (4040, 4993547), (4343, 4645160), (4472, 4511165), (5252, 3841190), (5590, 3608932), (6565, 3072952), (8686, 2322580), (8933, 2258360), (10504, 1920595), (11180, 1804466), (13130, 1536476), (17372, 1161290), (17866, 1129180), (21715, 929032), (22360, 902233), (26260, 768238), (34744, 580645), (35732, 564590), (43430, 464516), (44665, 451672), (52520, 384119), (56459, 357320), (71464, 282295), (86860, 232258), (89330, 225836), (112918, 178660), (116129, 173720)]