20449728

素因数分解:

$2^6\times 3^2\times {\mathrm{13}}^1\times {\mathrm{2731}}^1$

素因数の和:2762

約数の個数: 84

約数和(自身を含む): 63147448

約数和(自身を除く): 42697720

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 32, 36, 39, 48, 52, 64, 72, 78, 96, 104, 117, 144, 156, 192, 208, 234, 288, 312, 416, 468, 576, 624, 832, 936, 1248, 1872, 2496, 2731, 3744, 5462, 7488, 8193, 10924, 16386, 21848, 24579, 32772, 35503, 43696, 49158, 65544, 71006, 87392, 98316, 106509, 131088, 142012, 174784, 196632, 213018, 262176, 284024, 319527, 393264, 426036, 524352, 568048, 639054, 786528, 852072, 1136096, 1278108, 1573056, 1704144, 2272192, 2556216, 3408288, 5112432, 6816576, 10224864, 20449728]

約数ペア:

[(1, 20449728), (2, 10224864), (3, 6816576), (4, 5112432), (6, 3408288), (8, 2556216), (9, 2272192), (12, 1704144), (13, 1573056), (16, 1278108), (18, 1136096), (24, 852072), (26, 786528), (32, 639054), (36, 568048), (39, 524352), (48, 426036), (52, 393264), (64, 319527), (72, 284024), (78, 262176), (96, 213018), (104, 196632), (117, 174784), (144, 142012), (156, 131088), (192, 106509), (208, 98316), (234, 87392), (288, 71006), (312, 65544), (416, 49158), (468, 43696), (576, 35503), (624, 32772), (832, 24579), (936, 21848), (1248, 16386), (1872, 10924), (2496, 8193), (2731, 7488), (3744, 5462)]