64740613

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:421

約数の個数: 24

約数和(自身を含む): 77824152

約数和(自身を除く): 13083539

約数列:

[1, 7, 49, 53, 97, 257, 371, 679, 1799, 2597, 4753, 5141, 12593, 13621, 24929, 35987, 95347, 174503, 251909, 667429, 1221521, 1321237, 9248659, 64740613]

約数ペア:

[(1, 64740613), (7, 9248659), (49, 1321237), (53, 1221521), (97, 667429), (257, 251909), (371, 174503), (679, 95347), (1799, 35987), (2597, 24929), (4753, 13621), (5141, 12593)]