78777505

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{2797}}^1$

素因数の和:2976

約数の個数: 16

約数和(自身を含む): 97504704

約数和(自身を除く): 18727199

約数列:

[1, 5, 43, 131, 215, 655, 2797, 5633, 13985, 28165, 120271, 366407, 601355, 1832035, 15755501, 78777505]

約数ペア:

[(1, 78777505), (5, 15755501), (43, 1832035), (131, 601355), (215, 366407), (655, 120271), (2797, 28165), (5633, 13985)]