645373874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{73}}^2\times {\mathrm{3187}}^1$

素因数の和:3354

約数の個数: 24

約数和(自身を含む): 1033485840

約数和(自身を除く): 388111966

約数列:

[1, 2, 19, 38, 73, 146, 1387, 2774, 3187, 5329, 6374, 10658, 60553, 101251, 121106, 202502, 232651, 465302, 4420369, 8840738, 16983523, 33967046, 322686937, 645373874]

約数ペア:

[(1, 645373874), (2, 322686937), (19, 33967046), (38, 16983523), (73, 8840738), (146, 4420369), (1387, 465302), (2774, 232651), (3187, 202502), (5329, 121106), (6374, 101251), (10658, 60553)]