256348521

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{487}}^1$

素因数の和:926

約数の個数: 48

約数和(自身を含む): 436974720

約数和(自身を除く): 180626199

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 409, 429, 487, 1227, 1287, 1461, 3681, 4383, 4499, 5317, 5357, 6331, 13497, 15951, 16071, 18993, 40491, 47853, 48213, 56979, 58487, 69641, 175461, 199183, 208923, 526383, 597549, 626769, 1792647, 2191013, 2589379, 6573039, 7768137, 19719117, 23304411, 28483169, 85449507, 256348521]

約数ペア:

[(1, 256348521), (3, 85449507), (9, 28483169), (11, 23304411), (13, 19719117), (33, 7768137), (39, 6573039), (99, 2589379), (117, 2191013), (143, 1792647), (409, 626769), (429, 597549), (487, 526383), (1227, 208923), (1287, 199183), (1461, 175461), (3681, 69641), (4383, 58487), (4499, 56979), (5317, 48213), (5357, 47853), (6331, 40491), (13497, 18993), (15951, 16071)]