20620663520

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{69929}}^1$

素因数の和:70060

約数の個数: 96

約数和(自身を含む): 51809738400

約数和(自身を除く): 31189074880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 97, 152, 160, 190, 194, 304, 380, 388, 485, 608, 760, 776, 970, 1520, 1552, 1843, 1940, 3040, 3104, 3686, 3880, 7372, 7760, 9215, 14744, 15520, 18430, 29488, 36860, 58976, 69929, 73720, 139858, 147440, 279716, 294880, 349645, 559432, 699290, 1118864, 1328651, 1398580, 2237728, 2657302, 2797160, 5314604, 5594320, 6643255, 6783113, 10629208, 11188640, 13286510, 13566226, 21258416, 26573020, 27132452, 33915565, 42516832, 53146040, 54264904, 67831130, 106292080, 108529808, 128879147, 135662260, 212584160, 217059616, 257758294, 271324520, 515516588, 542649040, 644395735, 1031033176, 1085298080, 1288791470, 2062066352, 2577582940, 4124132704, 5155165880, 10310331760, 20620663520]

約数ペア:

[(1, 20620663520), (2, 10310331760), (4, 5155165880), (5, 4124132704), (8, 2577582940), (10, 2062066352), (16, 1288791470), (19, 1085298080), (20, 1031033176), (32, 644395735), (38, 542649040), (40, 515516588), (76, 271324520), (80, 257758294), (95, 217059616), (97, 212584160), (152, 135662260), (160, 128879147), (190, 108529808), (194, 106292080), (304, 67831130), (380, 54264904), (388, 53146040), (485, 42516832), (608, 33915565), (760, 27132452), (776, 26573020), (970, 21258416), (1520, 13566226), (1552, 13286510), (1843, 11188640), (1940, 10629208), (3040, 6783113), (3104, 6643255), (3686, 5594320), (3880, 5314604), (7372, 2797160), (7760, 2657302), (9215, 2237728), (14744, 1398580), (15520, 1328651), (18430, 1118864), (29488, 699290), (36860, 559432), (58976, 349645), (69929, 294880), (73720, 279716), (139858, 147440)]