199989779834

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{631}}^1\times {\mathrm{641581}}^1$

素因数の和:642246

約数の個数: 32

約数和(自身を含む): 340603052160

約数和(自身を除く): 140613272326

約数列:

[1, 2, 13, 19, 26, 38, 247, 494, 631, 1262, 8203, 11989, 16406, 23978, 155857, 311714, 641581, 1283162, 8340553, 12190039, 16681106, 24380078, 158470507, 316941014, 404837611, 809675222, 5262888943, 7691914609, 10525777886, 15383829218, 99994889917, 199989779834]

約数ペア:

[(1, 199989779834), (2, 99994889917), (13, 15383829218), (19, 10525777886), (26, 7691914609), (38, 5262888943), (247, 809675222), (494, 404837611), (631, 316941014), (1262, 158470507), (8203, 24380078), (11989, 16681106), (16406, 12190039), (23978, 8340553), (155857, 1283162), (311714, 641581)]