20930280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{24917}}^1$

素因数の和:24938

約数の個数: 64

約数和(自身を含む): 71763840

約数和(自身を除く): 50833560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 24917, 49834, 74751, 99668, 124585, 149502, 174419, 199336, 249170, 299004, 348838, 373755, 498340, 523257, 598008, 697676, 747510, 872095, 996680, 1046514, 1395352, 1495020, 1744190, 2093028, 2616285, 2990040, 3488380, 4186056, 5232570, 6976760, 10465140, 20930280]

約数ペア:

[(1, 20930280), (2, 10465140), (3, 6976760), (4, 5232570), (5, 4186056), (6, 3488380), (7, 2990040), (8, 2616285), (10, 2093028), (12, 1744190), (14, 1495020), (15, 1395352), (20, 1046514), (21, 996680), (24, 872095), (28, 747510), (30, 697676), (35, 598008), (40, 523257), (42, 498340), (56, 373755), (60, 348838), (70, 299004), (84, 249170), (105, 199336), (120, 174419), (140, 149502), (168, 124585), (210, 99668), (280, 74751), (420, 49834), (840, 24917)]