161256290

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{509}}^1\times {\mathrm{2437}}^1$

素因数の和:2966

約数の個数: 32

約数和(自身を含む): 313331760

約数和(自身を除く): 152075470

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 509, 1018, 2437, 2545, 4874, 5090, 6617, 12185, 13234, 24370, 31681, 33085, 63362, 66170, 158405, 316810, 1240433, 2480866, 6202165, 12404330, 16125629, 32251258, 80628145, 161256290]

約数ペア:

[(1, 161256290), (2, 80628145), (5, 32251258), (10, 16125629), (13, 12404330), (26, 6202165), (65, 2480866), (130, 1240433), (509, 316810), (1018, 158405), (2437, 66170), (2545, 63362), (4874, 33085), (5090, 31681), (6617, 24370), (12185, 13234)]