61813640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{859}}^1$

素因数の和:1134

約数の個数: 64

約数和(自身を含む): 159753600

約数和(自身を除く): 97939960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 257, 280, 514, 859, 1028, 1285, 1718, 1799, 2056, 2570, 3436, 3598, 4295, 5140, 6013, 6872, 7196, 8590, 8995, 10280, 12026, 14392, 17180, 17990, 24052, 30065, 34360, 35980, 48104, 60130, 71960, 120260, 220763, 240520, 441526, 883052, 1103815, 1545341, 1766104, 2207630, 3090682, 4415260, 6181364, 7726705, 8830520, 12362728, 15453410, 30906820, 61813640]

約数ペア:

[(1, 61813640), (2, 30906820), (4, 15453410), (5, 12362728), (7, 8830520), (8, 7726705), (10, 6181364), (14, 4415260), (20, 3090682), (28, 2207630), (35, 1766104), (40, 1545341), (56, 1103815), (70, 883052), (140, 441526), (257, 240520), (280, 220763), (514, 120260), (859, 71960), (1028, 60130), (1285, 48104), (1718, 35980), (1799, 34360), (2056, 30065), (2570, 24052), (3436, 17990), (3598, 17180), (4295, 14392), (5140, 12026), (6013, 10280), (6872, 8995), (7196, 8590)]