840256874

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1\times {\mathrm{887}}^1$

素因数の和:1262

約数の個数: 32

約数和(自身を含む): 1347131520

約数和(自身を除く): 506874646

約数列:

[1, 2, 19, 38, 97, 194, 257, 514, 887, 1774, 1843, 3686, 4883, 9766, 16853, 24929, 33706, 49858, 86039, 172078, 227959, 455918, 473651, 947302, 1634741, 3269482, 4331221, 8662442, 22112023, 44224046, 420128437, 840256874]

約数ペア:

[(1, 840256874), (2, 420128437), (19, 44224046), (38, 22112023), (97, 8662442), (194, 4331221), (257, 3269482), (514, 1634741), (887, 947302), (1774, 473651), (1843, 455918), (3686, 227959), (4883, 172078), (9766, 86039), (16853, 49858), (24929, 33706)]