399822170

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{617}}^1$

素因数の和:815

約数の個数: 64

約数和(自身を含む): 810539136

約数和(自身を除く): 410716966

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 137, 215, 274, 430, 473, 617, 685, 946, 1234, 1370, 1507, 2365, 3014, 3085, 4730, 5891, 6170, 6787, 7535, 11782, 13574, 15070, 26531, 29455, 33935, 53062, 58910, 64801, 67870, 84529, 129602, 132655, 169058, 265310, 291841, 324005, 422645, 583682, 648010, 845290, 929819, 1459205, 1859638, 2918410, 3634747, 4649095, 7269494, 9298190, 18173735, 36347470, 39982217, 79964434, 199911085, 399822170]

約数ペア:

[(1, 399822170), (2, 199911085), (5, 79964434), (10, 39982217), (11, 36347470), (22, 18173735), (43, 9298190), (55, 7269494), (86, 4649095), (110, 3634747), (137, 2918410), (215, 1859638), (274, 1459205), (430, 929819), (473, 845290), (617, 648010), (685, 583682), (946, 422645), (1234, 324005), (1370, 291841), (1507, 265310), (2365, 169058), (3014, 132655), (3085, 129602), (4730, 84529), (5891, 67870), (6170, 64801), (6787, 58910), (7535, 53062), (11782, 33935), (13574, 29455), (15070, 26531)]