20970240

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:194

約数の個数: 144

約数和(自身を含む): 69070848

約数和(自身を除く): 48100608

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 43, 48, 60, 64, 80, 86, 96, 120, 127, 128, 129, 160, 172, 192, 215, 240, 254, 256, 258, 320, 344, 381, 384, 430, 480, 508, 516, 635, 640, 645, 688, 762, 768, 860, 960, 1016, 1032, 1270, 1280, 1290, 1376, 1524, 1720, 1905, 1920, 2032, 2064, 2540, 2580, 2752, 3048, 3440, 3810, 3840, 4064, 4128, 5080, 5160, 5461, 5504, 6096, 6880, 7620, 8128, 8256, 10160, 10320, 10922, 11008, 12192, 13760, 15240, 16256, 16383, 16512, 20320, 20640, 21844, 24384, 27305, 27520, 30480, 32512, 32766, 33024, 40640, 41280, 43688, 48768, 54610, 55040, 60960, 65532, 81280, 81915, 82560, 87376, 97536, 109220, 121920, 131064, 162560, 163830, 165120, 174752, 218440, 243840, 262128, 327660, 349504, 436880, 487680, 524256, 655320, 699008, 873760, 1048512, 1310640, 1398016, 1747520, 2097024, 2621280, 3495040, 4194048, 5242560, 6990080, 10485120, 20970240]

約数ペア:

[(1, 20970240), (2, 10485120), (3, 6990080), (4, 5242560), (5, 4194048), (6, 3495040), (8, 2621280), (10, 2097024), (12, 1747520), (15, 1398016), (16, 1310640), (20, 1048512), (24, 873760), (30, 699008), (32, 655320), (40, 524256), (43, 487680), (48, 436880), (60, 349504), (64, 327660), (80, 262128), (86, 243840), (96, 218440), (120, 174752), (127, 165120), (128, 163830), (129, 162560), (160, 131064), (172, 121920), (192, 109220), (215, 97536), (240, 87376), (254, 82560), (256, 81915), (258, 81280), (320, 65532), (344, 60960), (381, 55040), (384, 54610), (430, 48768), (480, 43688), (508, 41280), (516, 40640), (635, 33024), (640, 32766), (645, 32512), (688, 30480), (762, 27520), (768, 27305), (860, 24384), (960, 21844), (1016, 20640), (1032, 20320), (1270, 16512), (1280, 16383), (1290, 16256), (1376, 15240), (1524, 13760), (1720, 12192), (1905, 11008), (1920, 10922), (2032, 10320), (2064, 10160), (2540, 8256), (2580, 8128), (2752, 7620), (3048, 6880), (3440, 6096), (3810, 5504), (3840, 5461), (4064, 5160), (4128, 5080)]