64320291

素因数分解:

$3^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{797}}^1$

素因数の和:881

約数の個数: 48

約数和(自身を含む): 112805280

約数和(自身を除く): 48484989

約数列:

[1, 3, 7, 9, 21, 27, 49, 61, 63, 147, 183, 189, 427, 441, 549, 797, 1281, 1323, 1647, 2391, 2989, 3843, 5579, 7173, 8967, 11529, 16737, 21519, 26901, 39053, 48617, 50211, 80703, 117159, 145851, 150633, 340319, 351477, 437553, 1020957, 1054431, 1312659, 2382233, 3062871, 7146699, 9188613, 21440097, 64320291]

約数ペア:

[(1, 64320291), (3, 21440097), (7, 9188613), (9, 7146699), (21, 3062871), (27, 2382233), (49, 1312659), (61, 1054431), (63, 1020957), (147, 437553), (183, 351477), (189, 340319), (427, 150633), (441, 145851), (549, 117159), (797, 80703), (1281, 50211), (1323, 48617), (1647, 39053), (2391, 26901), (2989, 21519), (3843, 16737), (5579, 11529), (7173, 8967)]