20787029120

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{227131}}^1$

素因数の和:227174

約数の個数: 128

約数和(自身を含む): 58382009280

約数和(自身を除く): 37594980160

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 20, 22, 26, 32, 40, 44, 52, 55, 64, 65, 80, 88, 104, 110, 128, 130, 143, 160, 176, 208, 220, 260, 286, 320, 352, 416, 440, 520, 572, 640, 704, 715, 832, 880, 1040, 1144, 1408, 1430, 1664, 1760, 2080, 2288, 2860, 3520, 4160, 4576, 5720, 7040, 8320, 9152, 11440, 18304, 22880, 45760, 91520, 227131, 454262, 908524, 1135655, 1817048, 2271310, 2498441, 2952703, 3634096, 4542620, 4996882, 5905406, 7268192, 9085240, 9993764, 11810812, 12492205, 14536384, 14763515, 18170480, 19987528, 23621624, 24984410, 29072768, 29527030, 32479733, 36340960, 39975056, 47243248, 49968820, 59054060, 64959466, 72681920, 79950112, 94486496, 99937640, 118108120, 129918932, 145363840, 159900224, 162398665, 188972992, 199875280, 236216240, 259837864, 319800448, 324797330, 377945984, 399750560, 472432480, 519675728, 649594660, 799501120, 944864960, 1039351456, 1299189320, 1599002240, 1889729920, 2078702912, 2598378640, 4157405824, 5196757280, 10393514560, 20787029120]

約数ペア:

[(1, 20787029120), (2, 10393514560), (4, 5196757280), (5, 4157405824), (8, 2598378640), (10, 2078702912), (11, 1889729920), (13, 1599002240), (16, 1299189320), (20, 1039351456), (22, 944864960), (26, 799501120), (32, 649594660), (40, 519675728), (44, 472432480), (52, 399750560), (55, 377945984), (64, 324797330), (65, 319800448), (80, 259837864), (88, 236216240), (104, 199875280), (110, 188972992), (128, 162398665), (130, 159900224), (143, 145363840), (160, 129918932), (176, 118108120), (208, 99937640), (220, 94486496), (260, 79950112), (286, 72681920), (320, 64959466), (352, 59054060), (416, 49968820), (440, 47243248), (520, 39975056), (572, 36340960), (640, 32479733), (704, 29527030), (715, 29072768), (832, 24984410), (880, 23621624), (1040, 19987528), (1144, 18170480), (1408, 14763515), (1430, 14536384), (1664, 12492205), (1760, 11810812), (2080, 9993764), (2288, 9085240), (2860, 7268192), (3520, 5905406), (4160, 4996882), (4576, 4542620), (5720, 3634096), (7040, 2952703), (8320, 2498441), (9152, 2271310), (11440, 1817048), (18304, 1135655), (22880, 908524), (45760, 454262), (91520, 227131)]