20457216

素因数分解:

$2^8\times 3^2\times {\mathrm{13}}^1\times {\mathrm{683}}^1$

素因数の和:718

約数の個数: 108

約数和(自身を含む): 63613368

約数和(自身を除く): 43156152

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, 128, 144, 156, 192, 208, 234, 256, 288, 312, 384, 416, 468, 576, 624, 683, 768, 832, 936, 1152, 1248, 1366, 1664, 1872, 2049, 2304, 2496, 2732, 3328, 3744, 4098, 4992, 5464, 6147, 7488, 8196, 8879, 9984, 10928, 12294, 14976, 16392, 17758, 21856, 24588, 26637, 29952, 32784, 35516, 43712, 49176, 53274, 65568, 71032, 79911, 87424, 98352, 106548, 131136, 142064, 159822, 174848, 196704, 213096, 262272, 284128, 319644, 393408, 426192, 524544, 568256, 639288, 786816, 852384, 1136512, 1278576, 1573632, 1704768, 2273024, 2557152, 3409536, 5114304, 6819072, 10228608, 20457216]

約数ペア:

[(1, 20457216), (2, 10228608), (3, 6819072), (4, 5114304), (6, 3409536), (8, 2557152), (9, 2273024), (12, 1704768), (13, 1573632), (16, 1278576), (18, 1136512), (24, 852384), (26, 786816), (32, 639288), (36, 568256), (39, 524544), (48, 426192), (52, 393408), (64, 319644), (72, 284128), (78, 262272), (96, 213096), (104, 196704), (117, 174848), (128, 159822), (144, 142064), (156, 131136), (192, 106548), (208, 98352), (234, 87424), (256, 79911), (288, 71032), (312, 65568), (384, 53274), (416, 49176), (468, 43712), (576, 35516), (624, 32784), (683, 29952), (768, 26637), (832, 24588), (936, 21856), (1152, 17758), (1248, 16392), (1366, 14976), (1664, 12294), (1872, 10928), (2049, 9984), (2304, 8879), (2496, 8196), (2732, 7488), (3328, 6147), (3744, 5464), (4098, 4992)]