81728386

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{15473}}^1$

素因数の和:15633

約数の個数: 16

約数和(自身を含む): 129981600

約数和(自身を除く): 48253214

約数列:

[1, 2, 19, 38, 139, 278, 2641, 5282, 15473, 30946, 293987, 587974, 2150747, 4301494, 40864193, 81728386]

約数ペア:

[(1, 81728386), (2, 40864193), (19, 4301494), (38, 2150747), (139, 587974), (278, 293987), (2641, 30946), (5282, 15473)]