291135455

素因数分解:

$5^1\times {\mathrm{13}}^3\times {\mathrm{17}}^1\times {\mathrm{1559}}^1$

素因数の和:1620

約数の個数: 32

約数和(自身を含む): 400982400

約数和(自身を除く): 109846945

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 1559, 2197, 2873, 7795, 10985, 14365, 20267, 26503, 37349, 101335, 132515, 186745, 263471, 344539, 1317355, 1722695, 3425123, 4479007, 17125615, 22395035, 58227091, 291135455]

約数ペア:

[(1, 291135455), (5, 58227091), (13, 22395035), (17, 17125615), (65, 4479007), (85, 3425123), (169, 1722695), (221, 1317355), (845, 344539), (1105, 263471), (1559, 186745), (2197, 132515), (2873, 101335), (7795, 37349), (10985, 26503), (14365, 20267)]