25980695

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 35851200

約数和(自身を除く): 9870505

約数列:

[1, 5, 13, 19, 65, 95, 109, 193, 247, 545, 965, 1235, 1417, 2071, 2509, 3667, 7085, 10355, 12545, 18335, 21037, 26923, 47671, 105185, 134615, 238355, 273481, 399703, 1367405, 1998515, 5196139, 25980695]

約数ペア:

[(1, 25980695), (5, 5196139), (13, 1998515), (19, 1367405), (65, 399703), (95, 273481), (109, 238355), (193, 134615), (247, 105185), (545, 47671), (965, 26923), (1235, 21037), (1417, 18335), (2071, 12545), (2509, 10355), (3667, 7085)]