20524560

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:685

約数の個数: 160

約数和(自身を含む): 76661760

約数和(自身を除く): 56137200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 19, 20, 21, 24, 28, 30, 35, 38, 40, 42, 48, 56, 57, 60, 70, 76, 80, 84, 95, 105, 112, 114, 120, 133, 140, 152, 168, 190, 210, 228, 240, 266, 280, 285, 304, 336, 380, 399, 420, 456, 532, 560, 570, 643, 665, 760, 798, 840, 912, 1064, 1140, 1286, 1330, 1520, 1596, 1680, 1929, 1995, 2128, 2280, 2572, 2660, 3192, 3215, 3858, 3990, 4501, 4560, 5144, 5320, 6384, 6430, 7716, 7980, 9002, 9645, 10288, 10640, 12217, 12860, 13503, 15432, 15960, 18004, 19290, 22505, 24434, 25720, 27006, 30864, 31920, 36008, 36651, 38580, 45010, 48868, 51440, 54012, 61085, 67515, 72016, 73302, 77160, 85519, 90020, 97736, 108024, 122170, 135030, 146604, 154320, 171038, 180040, 183255, 195472, 216048, 244340, 256557, 270060, 293208, 342076, 360080, 366510, 427595, 488680, 513114, 540120, 586416, 684152, 733020, 855190, 977360, 1026228, 1080240, 1282785, 1368304, 1466040, 1710380, 2052456, 2565570, 2932080, 3420760, 4104912, 5131140, 6841520, 10262280, 20524560]

約数ペア:

[(1, 20524560), (2, 10262280), (3, 6841520), (4, 5131140), (5, 4104912), (6, 3420760), (7, 2932080), (8, 2565570), (10, 2052456), (12, 1710380), (14, 1466040), (15, 1368304), (16, 1282785), (19, 1080240), (20, 1026228), (21, 977360), (24, 855190), (28, 733020), (30, 684152), (35, 586416), (38, 540120), (40, 513114), (42, 488680), (48, 427595), (56, 366510), (57, 360080), (60, 342076), (70, 293208), (76, 270060), (80, 256557), (84, 244340), (95, 216048), (105, 195472), (112, 183255), (114, 180040), (120, 171038), (133, 154320), (140, 146604), (152, 135030), (168, 122170), (190, 108024), (210, 97736), (228, 90020), (240, 85519), (266, 77160), (280, 73302), (285, 72016), (304, 67515), (336, 61085), (380, 54012), (399, 51440), (420, 48868), (456, 45010), (532, 38580), (560, 36651), (570, 36008), (643, 31920), (665, 30864), (760, 27006), (798, 25720), (840, 24434), (912, 22505), (1064, 19290), (1140, 18004), (1286, 15960), (1330, 15432), (1520, 13503), (1596, 12860), (1680, 12217), (1929, 10640), (1995, 10288), (2128, 9645), (2280, 9002), (2572, 7980), (2660, 7716), (3192, 6430), (3215, 6384), (3858, 5320), (3990, 5144), (4501, 4560)]