20851489920

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{85513}}^1$

素因数の和:85662

約数の個数: 128

約数和(自身を含む): 66988247040

約数和(自身を除く): 46136757120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 127, 128, 160, 192, 240, 254, 320, 381, 384, 480, 508, 635, 640, 762, 960, 1016, 1270, 1524, 1905, 1920, 2032, 2540, 3048, 3810, 4064, 5080, 6096, 7620, 8128, 10160, 12192, 15240, 16256, 20320, 24384, 30480, 40640, 48768, 60960, 81280, 85513, 121920, 171026, 243840, 256539, 342052, 427565, 513078, 684104, 855130, 1026156, 1282695, 1368208, 1710260, 2052312, 2565390, 2736416, 3420520, 4104624, 5130780, 5472832, 6841040, 8209248, 10261560, 10860151, 10945664, 13682080, 16418496, 20523120, 21720302, 27364160, 32580453, 32836992, 41046240, 43440604, 54300755, 54728320, 65160906, 82092480, 86881208, 108601510, 130321812, 162902265, 164184960, 173762416, 217203020, 260643624, 325804530, 347524832, 434406040, 521287248, 651609060, 695049664, 868812080, 1042574496, 1303218120, 1390099328, 1737624160, 2085148992, 2606436240, 3475248320, 4170297984, 5212872480, 6950496640, 10425744960, 20851489920]

約数ペア:

[(1, 20851489920), (2, 10425744960), (3, 6950496640), (4, 5212872480), (5, 4170297984), (6, 3475248320), (8, 2606436240), (10, 2085148992), (12, 1737624160), (15, 1390099328), (16, 1303218120), (20, 1042574496), (24, 868812080), (30, 695049664), (32, 651609060), (40, 521287248), (48, 434406040), (60, 347524832), (64, 325804530), (80, 260643624), (96, 217203020), (120, 173762416), (127, 164184960), (128, 162902265), (160, 130321812), (192, 108601510), (240, 86881208), (254, 82092480), (320, 65160906), (381, 54728320), (384, 54300755), (480, 43440604), (508, 41046240), (635, 32836992), (640, 32580453), (762, 27364160), (960, 21720302), (1016, 20523120), (1270, 16418496), (1524, 13682080), (1905, 10945664), (1920, 10860151), (2032, 10261560), (2540, 8209248), (3048, 6841040), (3810, 5472832), (4064, 5130780), (5080, 4104624), (6096, 3420520), (7620, 2736416), (8128, 2565390), (10160, 2052312), (12192, 1710260), (15240, 1368208), (16256, 1282695), (20320, 1026156), (24384, 855130), (30480, 684104), (40640, 513078), (48768, 427565), (60960, 342052), (81280, 256539), (85513, 243840), (121920, 171026)]