25480637

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{181}}^1$

素因数の和:238

約数の個数: 36

約数和(自身を含む): 34171956

約数和(自身を除く): 8691319

約数列:

[1, 7, 13, 17, 49, 91, 119, 169, 181, 221, 637, 833, 1183, 1267, 1547, 2353, 2873, 3077, 8281, 8869, 10829, 16471, 20111, 21539, 30589, 40001, 115297, 140777, 150773, 214123, 280007, 520013, 1498861, 1960049, 3640091, 25480637]

約数ペア:

[(1, 25480637), (7, 3640091), (13, 1960049), (17, 1498861), (49, 520013), (91, 280007), (119, 214123), (169, 150773), (181, 140777), (221, 115297), (637, 40001), (833, 30589), (1183, 21539), (1267, 20111), (1547, 16471), (2353, 10829), (2873, 8869), (3077, 8281)]