20714938720

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{311}}^1\times {\mathrm{59471}}^1$

素因数の和:59804

約数の個数: 96

約数和(自身を含む): 56111118336

約数和(自身を除く): 35396179616

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 311, 560, 622, 1120, 1244, 1555, 2177, 2488, 3110, 4354, 4976, 6220, 8708, 9952, 10885, 12440, 17416, 21770, 24880, 34832, 43540, 49760, 59471, 69664, 87080, 118942, 174160, 237884, 297355, 348320, 416297, 475768, 594710, 832594, 951536, 1189420, 1665188, 1903072, 2081485, 2378840, 3330376, 4162970, 4757680, 6660752, 8325940, 9515360, 13321504, 16651880, 18495481, 33303760, 36990962, 66607520, 73981924, 92477405, 129468367, 147963848, 184954810, 258936734, 295927696, 369909620, 517873468, 591855392, 647341835, 739819240, 1035746936, 1294683670, 1479638480, 2071493872, 2589367340, 2959276960, 4142987744, 5178734680, 10357469360, 20714938720]

約数ペア:

[(1, 20714938720), (2, 10357469360), (4, 5178734680), (5, 4142987744), (7, 2959276960), (8, 2589367340), (10, 2071493872), (14, 1479638480), (16, 1294683670), (20, 1035746936), (28, 739819240), (32, 647341835), (35, 591855392), (40, 517873468), (56, 369909620), (70, 295927696), (80, 258936734), (112, 184954810), (140, 147963848), (160, 129468367), (224, 92477405), (280, 73981924), (311, 66607520), (560, 36990962), (622, 33303760), (1120, 18495481), (1244, 16651880), (1555, 13321504), (2177, 9515360), (2488, 8325940), (3110, 6660752), (4354, 4757680), (4976, 4162970), (6220, 3330376), (8708, 2378840), (9952, 2081485), (10885, 1903072), (12440, 1665188), (17416, 1189420), (21770, 951536), (24880, 832594), (34832, 594710), (43540, 475768), (49760, 416297), (59471, 348320), (69664, 297355), (87080, 237884), (118942, 174160)]