256778523

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{269}}^1\times {\mathrm{367}}^1$

素因数の和:676

約数の個数: 36

約数和(自身を含む): 396545760

約数和(自身を除く): 139767237

約数列:

[1, 3, 9, 17, 51, 153, 269, 289, 367, 807, 867, 1101, 2421, 2601, 3303, 4573, 6239, 13719, 18717, 41157, 56151, 77741, 98723, 106063, 233223, 296169, 318189, 699669, 888507, 954567, 1678291, 5034873, 15104619, 28530947, 85592841, 256778523]

約数ペア:

[(1, 256778523), (3, 85592841), (9, 28530947), (17, 15104619), (51, 5034873), (153, 1678291), (269, 954567), (289, 888507), (367, 699669), (807, 318189), (867, 296169), (1101, 233223), (2421, 106063), (2601, 98723), (3303, 77741), (4573, 56151), (6239, 41157), (13719, 18717)]