20149086580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{223829}}^1$

素因数の和:224488

約数の個数: 48

約数和(自身を含む): 48433230720

約数和(自身を除く): 28284144140

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 1286, 2572, 3215, 4501, 6430, 9002, 12860, 18004, 22505, 45010, 90020, 223829, 447658, 895316, 1119145, 1566803, 2238290, 3133606, 4476580, 6267212, 7834015, 15668030, 31336060, 143922047, 287844094, 575688188, 719610235, 1007454329, 1439220470, 2014908658, 2878440940, 4029817316, 5037271645, 10074543290, 20149086580]

約数ペア:

[(1, 20149086580), (2, 10074543290), (4, 5037271645), (5, 4029817316), (7, 2878440940), (10, 2014908658), (14, 1439220470), (20, 1007454329), (28, 719610235), (35, 575688188), (70, 287844094), (140, 143922047), (643, 31336060), (1286, 15668030), (2572, 7834015), (3215, 6267212), (4501, 4476580), (6430, 3133606), (9002, 2238290), (12860, 1566803), (18004, 1119145), (22505, 895316), (45010, 447658), (90020, 223829)]