20649216

素因数分解:

$2^8\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{167}}^1$

素因数の和:216

約数の個数: 144

約数和(自身を含む): 65931264

約数和(自身を除く): 45282048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 23, 24, 28, 32, 42, 46, 48, 56, 64, 69, 84, 92, 96, 112, 128, 138, 161, 167, 168, 184, 192, 224, 256, 276, 322, 334, 336, 368, 384, 448, 483, 501, 552, 644, 668, 672, 736, 768, 896, 966, 1002, 1104, 1169, 1288, 1336, 1344, 1472, 1792, 1932, 2004, 2208, 2338, 2576, 2672, 2688, 2944, 3507, 3841, 3864, 4008, 4416, 4676, 5152, 5344, 5376, 5888, 7014, 7682, 7728, 8016, 8832, 9352, 10304, 10688, 11523, 14028, 15364, 15456, 16032, 17664, 18704, 20608, 21376, 23046, 26887, 28056, 30728, 30912, 32064, 37408, 41216, 42752, 46092, 53774, 56112, 61456, 61824, 64128, 74816, 80661, 92184, 107548, 112224, 122912, 123648, 128256, 149632, 161322, 184368, 215096, 224448, 245824, 299264, 322644, 368736, 430192, 448896, 491648, 645288, 737472, 860384, 897792, 983296, 1290576, 1474944, 1720768, 2581152, 2949888, 3441536, 5162304, 6883072, 10324608, 20649216]

約数ペア:

[(1, 20649216), (2, 10324608), (3, 6883072), (4, 5162304), (6, 3441536), (7, 2949888), (8, 2581152), (12, 1720768), (14, 1474944), (16, 1290576), (21, 983296), (23, 897792), (24, 860384), (28, 737472), (32, 645288), (42, 491648), (46, 448896), (48, 430192), (56, 368736), (64, 322644), (69, 299264), (84, 245824), (92, 224448), (96, 215096), (112, 184368), (128, 161322), (138, 149632), (161, 128256), (167, 123648), (168, 122912), (184, 112224), (192, 107548), (224, 92184), (256, 80661), (276, 74816), (322, 64128), (334, 61824), (336, 61456), (368, 56112), (384, 53774), (448, 46092), (483, 42752), (501, 41216), (552, 37408), (644, 32064), (668, 30912), (672, 30728), (736, 28056), (768, 26887), (896, 23046), (966, 21376), (1002, 20608), (1104, 18704), (1169, 17664), (1288, 16032), (1336, 15456), (1344, 15364), (1472, 14028), (1792, 11523), (1932, 10688), (2004, 10304), (2208, 9352), (2338, 8832), (2576, 8016), (2672, 7728), (2688, 7682), (2944, 7014), (3507, 5888), (3841, 5376), (3864, 5344), (4008, 5152), (4416, 4676)]