256904739

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4297}}^1$

素因数の和:4396

約数の個数: 48

約数和(自身を含む): 463083712

約数和(自身を除く): 206178973

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 73, 91, 117, 219, 273, 511, 657, 819, 949, 1533, 2847, 4297, 4599, 6643, 8541, 12891, 19929, 30079, 38673, 55861, 59787, 90237, 167583, 270711, 313681, 391027, 502749, 941043, 1173081, 2195767, 2823129, 3519243, 4077853, 6587301, 12233559, 19761903, 28544971, 36700677, 85634913, 256904739]

約数ペア:

[(1, 256904739), (3, 85634913), (7, 36700677), (9, 28544971), (13, 19761903), (21, 12233559), (39, 6587301), (63, 4077853), (73, 3519243), (91, 2823129), (117, 2195767), (219, 1173081), (273, 941043), (511, 502749), (657, 391027), (819, 313681), (949, 270711), (1533, 167583), (2847, 90237), (4297, 59787), (4599, 55861), (6643, 38673), (8541, 30079), (12891, 19929)]