40638760

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{3863}}^1$

素因数の和:4137

約数の個数: 32

約数和(自身を含む): 91808640

約数和(自身を除く): 51169880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 3863, 5260, 7726, 10520, 15452, 19315, 30904, 38630, 77260, 154520, 1015969, 2031938, 4063876, 5079845, 8127752, 10159690, 20319380, 40638760]

約数ペア:

[(1, 40638760), (2, 20319380), (4, 10159690), (5, 8127752), (8, 5079845), (10, 4063876), (20, 2031938), (40, 1015969), (263, 154520), (526, 77260), (1052, 38630), (1315, 30904), (2104, 19315), (2630, 15452), (3863, 10520), (5260, 7726)]