261232986

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1543}}^1$

素因数の和:1723

約数の個数: 64

約数和(自身を含む): 622540800

約数和(自身を除く): 361307814

約数列:

[1, 2, 3, 6, 7, 14, 21, 29, 42, 58, 87, 139, 174, 203, 278, 406, 417, 609, 834, 973, 1218, 1543, 1946, 2919, 3086, 4031, 4629, 5838, 8062, 9258, 10801, 12093, 21602, 24186, 28217, 32403, 44747, 56434, 64806, 84651, 89494, 134241, 169302, 214477, 268482, 313229, 428954, 626458, 643431, 939687, 1286862, 1501339, 1879374, 3002678, 4504017, 6219833, 9008034, 12439666, 18659499, 37318998, 43538831, 87077662, 130616493, 261232986]

約数ペア:

[(1, 261232986), (2, 130616493), (3, 87077662), (6, 43538831), (7, 37318998), (14, 18659499), (21, 12439666), (29, 9008034), (42, 6219833), (58, 4504017), (87, 3002678), (139, 1879374), (174, 1501339), (203, 1286862), (278, 939687), (406, 643431), (417, 626458), (609, 428954), (834, 313229), (973, 268482), (1218, 214477), (1543, 169302), (1946, 134241), (2919, 89494), (3086, 84651), (4031, 64806), (4629, 56434), (5838, 44747), (8062, 32403), (9258, 28217), (10801, 24186), (12093, 21602)]