220138295

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:503

約数の個数: 32

約数和(自身を含む): 290594304

約数和(自身を除く): 70456009

約数列:

[1, 5, 13, 65, 103, 131, 251, 515, 655, 1255, 1339, 1703, 3263, 6695, 8515, 13493, 16315, 25853, 32881, 67465, 129265, 164405, 175409, 336089, 427453, 877045, 1680445, 2137265, 3386743, 16933715, 44027659, 220138295]

約数ペア:

[(1, 220138295), (5, 44027659), (13, 16933715), (65, 3386743), (103, 2137265), (131, 1680445), (251, 877045), (515, 427453), (655, 336089), (1255, 175409), (1339, 164405), (1703, 129265), (3263, 67465), (6695, 32881), (8515, 25853), (13493, 16315)]