671305

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:168

約数の個数: 16

約数和(自身を含む): 857088

約数和(自身を除く): 185783

約数列:

[1, 5, 31, 61, 71, 155, 305, 355, 1891, 2201, 4331, 9455, 11005, 21655, 134261, 671305]

約数ペア:

[(1, 671305), (5, 134261), (31, 21655), (61, 11005), (71, 9455), (155, 4331), (305, 2201), (355, 1891)]