78720719

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{27631}}^1$

素因数の和:27686

約数の個数: 16

約数和(自身を含む): 100801536

約数和(自身を除く): 22080817

約数列:

[1, 7, 11, 37, 77, 259, 407, 2849, 27631, 193417, 303941, 1022347, 2127587, 7156429, 11245817, 78720719]

約数ペア:

[(1, 78720719), (7, 11245817), (11, 7156429), (37, 2127587), (77, 1022347), (259, 303941), (407, 193417), (2849, 27631)]