20144688

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:362

約数の個数: 80

約数和(自身を含む): 55282176

約数和(自身を除く): 35137488

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 69, 71, 92, 138, 142, 184, 213, 257, 276, 284, 368, 426, 514, 552, 568, 771, 852, 1028, 1104, 1136, 1542, 1633, 1704, 2056, 3084, 3266, 3408, 4112, 4899, 5911, 6168, 6532, 9798, 11822, 12336, 13064, 17733, 18247, 19596, 23644, 26128, 35466, 36494, 39192, 47288, 54741, 70932, 72988, 78384, 94576, 109482, 141864, 145976, 218964, 283728, 291952, 419681, 437928, 839362, 875856, 1259043, 1678724, 2518086, 3357448, 5036172, 6714896, 10072344, 20144688]

約数ペア:

[(1, 20144688), (2, 10072344), (3, 6714896), (4, 5036172), (6, 3357448), (8, 2518086), (12, 1678724), (16, 1259043), (23, 875856), (24, 839362), (46, 437928), (48, 419681), (69, 291952), (71, 283728), (92, 218964), (138, 145976), (142, 141864), (184, 109482), (213, 94576), (257, 78384), (276, 72988), (284, 70932), (368, 54741), (426, 47288), (514, 39192), (552, 36494), (568, 35466), (771, 26128), (852, 23644), (1028, 19596), (1104, 18247), (1136, 17733), (1542, 13064), (1633, 12336), (1704, 11822), (2056, 9798), (3084, 6532), (3266, 6168), (3408, 5911), (4112, 4899)]