20786688

素因数分解:

$2^9\times 3^2\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:384

約数の個数: 120

約数和(自身を含む): 64792728

約数和(自身を除く): 44006040

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, 347, 384, 416, 468, 512, 576, 624, 694, 768, 832, 936, 1041, 1152, 1248, 1388, 1536, 1664, 1872, 2082, 2304, 2496, 2776, 3123, 3328, 3744, 4164, 4511, 4608, 4992, 5552, 6246, 6656, 7488, 8328, 9022, 9984, 11104, 12492, 13533, 14976, 16656, 18044, 19968, 22208, 24984, 27066, 29952, 33312, 36088, 40599, 44416, 49968, 54132, 59904, 66624, 72176, 81198, 88832, 99936, 108264, 133248, 144352, 162396, 177664, 199872, 216528, 266496, 288704, 324792, 399744, 433056, 532992, 577408, 649584, 799488, 866112, 1154816, 1299168, 1598976, 1732224, 2309632, 2598336, 3464448, 5196672, 6928896, 10393344, 20786688]

約数ペア:

[(1, 20786688), (2, 10393344), (3, 6928896), (4, 5196672), (6, 3464448), (8, 2598336), (9, 2309632), (12, 1732224), (13, 1598976), (16, 1299168), (18, 1154816), (24, 866112), (26, 799488), (32, 649584), (36, 577408), (39, 532992), (48, 433056), (52, 399744), (64, 324792), (72, 288704), (78, 266496), (96, 216528), (104, 199872), (117, 177664), (128, 162396), (144, 144352), (156, 133248), (192, 108264), (208, 99936), (234, 88832), (256, 81198), (288, 72176), (312, 66624), (347, 59904), (384, 54132), (416, 49968), (468, 44416), (512, 40599), (576, 36088), (624, 33312), (694, 29952), (768, 27066), (832, 24984), (936, 22208), (1041, 19968), (1152, 18044), (1248, 16656), (1388, 14976), (1536, 13533), (1664, 12492), (1872, 11104), (2082, 9984), (2304, 9022), (2496, 8328), (2776, 7488), (3123, 6656), (3328, 6246), (3744, 5552), (4164, 4992), (4511, 4608)]