257224479

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{229}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 365998080

約数和(自身を除く): 108773601

約数列:

[1, 3, 23, 69, 73, 219, 223, 229, 669, 687, 1679, 5037, 5129, 5267, 15387, 15801, 16279, 16717, 48837, 50151, 51067, 153201, 374417, 384491, 1123251, 1153473, 1174541, 3523623, 3727891, 11183673, 85741493, 257224479]

約数ペア:

[(1, 257224479), (3, 85741493), (23, 11183673), (69, 3727891), (73, 3523623), (219, 1174541), (223, 1153473), (229, 1123251), (669, 384491), (687, 374417), (1679, 153201), (5037, 51067), (5129, 50151), (5267, 48837), (15387, 16717), (15801, 16279)]