20801550.000000000

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:162

約数の個数: 128

約数和(自身を含む): 243855360

約数和(自身を除く): 136621090

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 31, 41, 55, 59, 62, 65, 82, 110, 118, 130, 143, 155, 205, 286, 295, 310, 341, 403, 410, 451, 533, 590, 649, 682, 715, 767, 806, 902, 1066, 1271, 1298, 1430, 1534, 1705, 1829, 2015, 2255, 2419, 2542, 2665, 3245, 3410, 3658, 3835, 4030, 4433, 4510, 4838, 5330, 5863, 6355, 6490, 7670, 8437, 8866, 9145, 11726, 12095, 12710, 13981, 16523, 16874, 18290, 20119, 22165, 23777, 24190, 26609, 27962, 29315, 31447, 33046, 40238, 42185, 44330, 47554, 53218, 58630, 62894, 69905, 74989, 82615, 84370, 100595, 118885, 133045, 139810, 149978, 157235, 165230, 181753, 201190, 237770, 261547, 266090, 314470, 345917, 363506, 374945, 523094, 691834, 749890, 824879, 908765, 974857, 1307735, 1649758, 1729585, 1817530, 1949714, 2615470, 3459170, 4124395, 4874285, 8248790, 9748570, 10723427, 21446854, 53617135, 107234270]

約数ペア:

[(1, 107234270), (2, 53617135), (5, 21446854), (10, 10723427), (11, 9748570), (13, 8248790), (22, 4874285), (26, 4124395), (31, 3459170), (41, 2615470), (55, 1949714), (59, 1817530), (62, 1729585), (65, 1649758), (82, 1307735), (110, 974857), (118, 908765), (130, 824879), (143, 749890), (155, 691834), (205, 523094), (286, 374945), (295, 363506), (310, 345917), (341, 314470), (403, 266090), (410, 261547), (451, 237770), (533, 201190), (590, 181753), (649, 165230), (682, 157235), (715, 149978), (767, 139810), (806, 133045), (902, 118885), (1066, 100595), (1271, 84370), (1298, 82615), (1430, 74989), (1534, 69905), (1705, 62894), (1829, 58630), (2015, 53218), (2255, 47554), (2419, 44330), (2542, 42185), (2665, 40238), (3245, 33046), (3410, 31447), (3658, 29315), (3835, 27962), (4030, 26609), (4433, 24190), (4510, 23777), (4838, 22165), (5330, 20119), (5863, 18290), (6355, 16874), (6490, 16523), (7670, 13981), (8437, 12710), (8866, 12095), (9145, 11726)]