256280715

素因数分解:

$3^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{4391}}^1$

素因数の和:5699

約数の個数: 24

約数和(自身を含む): 444663648

約数和(自身を除く): 188382933

約数列:

[1, 3, 5, 9, 15, 45, 1297, 3891, 4391, 6485, 11673, 13173, 19455, 21955, 39519, 58365, 65865, 197595, 5695127, 17085381, 28475635, 51256143, 85426905, 256280715]

約数ペア:

[(1, 256280715), (3, 85426905), (5, 51256143), (9, 28475635), (15, 17085381), (45, 5695127), (1297, 197595), (3891, 65865), (4391, 58365), (6485, 39519), (11673, 21955), (13173, 19455)]