20165136

素因数分解:

$2^4\times 3^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 54246528

約数和(自身を除く): 34081392

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 61, 71, 97, 122, 142, 183, 194, 213, 244, 284, 291, 366, 388, 426, 488, 568, 582, 732, 776, 852, 976, 1136, 1164, 1464, 1552, 1704, 2328, 2928, 3408, 4331, 4656, 5917, 6887, 8662, 11834, 12993, 13774, 17324, 17751, 20661, 23668, 25986, 27548, 34648, 35502, 41322, 47336, 51972, 55096, 69296, 71004, 82644, 94672, 103944, 110192, 142008, 165288, 207888, 284016, 330576, 420107, 840214, 1260321, 1680428, 2520642, 3360856, 5041284, 6721712, 10082568, 20165136]

約数ペア:

[(1, 20165136), (2, 10082568), (3, 6721712), (4, 5041284), (6, 3360856), (8, 2520642), (12, 1680428), (16, 1260321), (24, 840214), (48, 420107), (61, 330576), (71, 284016), (97, 207888), (122, 165288), (142, 142008), (183, 110192), (194, 103944), (213, 94672), (244, 82644), (284, 71004), (291, 69296), (366, 55096), (388, 51972), (426, 47336), (488, 41322), (568, 35502), (582, 34648), (732, 27548), (776, 25986), (852, 23668), (976, 20661), (1136, 17751), (1164, 17324), (1464, 13774), (1552, 12993), (1704, 11834), (2328, 8662), (2928, 6887), (3408, 5917), (4331, 4656)]