8218449940

素因数分解:

$2^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{761}}^1\times {\mathrm{2741}}^1$

素因数の和:3708

約数の個数: 48

約数和(自身を含む): 17375483664

約数和(自身を除く): 9157033724

約数列:

[1, 2, 4, 5, 10, 20, 197, 394, 761, 788, 985, 1522, 1970, 2741, 3044, 3805, 3940, 5482, 7610, 10964, 13705, 15220, 27410, 54820, 149917, 299834, 539977, 599668, 749585, 1079954, 1499170, 2085901, 2159908, 2699885, 2998340, 4171802, 5399770, 8343604, 10429505, 10799540, 20859010, 41718020, 410922497, 821844994, 1643689988, 2054612485, 4109224970, 8218449940]

約数ペア:

[(1, 8218449940), (2, 4109224970), (4, 2054612485), (5, 1643689988), (10, 821844994), (20, 410922497), (197, 41718020), (394, 20859010), (761, 10799540), (788, 10429505), (985, 8343604), (1522, 5399770), (1970, 4171802), (2741, 2998340), (3044, 2699885), (3805, 2159908), (3940, 2085901), (5482, 1499170), (7610, 1079954), (10964, 749585), (13705, 599668), (15220, 539977), (27410, 299834), (54820, 149917)]