20809789616

素因数分解:

$2^4\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{77839}}^1$

素因数の和:77903

約数の個数: 120

約数和(自身を含む): 52816619520

約数和(自身を除く): 32006829904

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 31, 44, 49, 56, 62, 77, 88, 98, 112, 124, 154, 176, 196, 217, 248, 308, 341, 392, 434, 496, 539, 616, 682, 784, 868, 1078, 1232, 1364, 1519, 1736, 2156, 2387, 2728, 3038, 3472, 4312, 4774, 5456, 6076, 8624, 9548, 12152, 16709, 19096, 24304, 33418, 38192, 66836, 77839, 133672, 155678, 267344, 311356, 544873, 622712, 856229, 1089746, 1245424, 1712458, 2179492, 2413009, 3424916, 3814111, 4358984, 4826018, 5993603, 6849832, 7628222, 8717968, 9652036, 11987206, 13699664, 15256444, 16891063, 19304072, 23974412, 26543099, 30512888, 33782126, 38608144, 41955221, 47948824, 53086198, 61025776, 67564252, 83910442, 95897648, 106172396, 118237441, 135128504, 167820884, 185801693, 212344792, 236474882, 270257008, 335641768, 371603386, 424689584, 472949764, 671283536, 743206772, 945899528, 1300611851, 1486413544, 1891799056, 2601223702, 2972827088, 5202447404, 10404894808, 20809789616]

約数ペア:

[(1, 20809789616), (2, 10404894808), (4, 5202447404), (7, 2972827088), (8, 2601223702), (11, 1891799056), (14, 1486413544), (16, 1300611851), (22, 945899528), (28, 743206772), (31, 671283536), (44, 472949764), (49, 424689584), (56, 371603386), (62, 335641768), (77, 270257008), (88, 236474882), (98, 212344792), (112, 185801693), (124, 167820884), (154, 135128504), (176, 118237441), (196, 106172396), (217, 95897648), (248, 83910442), (308, 67564252), (341, 61025776), (392, 53086198), (434, 47948824), (496, 41955221), (539, 38608144), (616, 33782126), (682, 30512888), (784, 26543099), (868, 23974412), (1078, 19304072), (1232, 16891063), (1364, 15256444), (1519, 13699664), (1736, 11987206), (2156, 9652036), (2387, 8717968), (2728, 7628222), (3038, 6849832), (3472, 5993603), (4312, 4826018), (4774, 4358984), (5456, 3814111), (6076, 3424916), (8624, 2413009), (9548, 2179492), (12152, 1712458), (16709, 1245424), (19096, 1089746), (24304, 856229), (33418, 622712), (38192, 544873), (66836, 311356), (77839, 267344), (133672, 155678)]