20285325

素因数分解:

$3^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{1013}}^1$

素因数の和:1118

約数の個数: 36

約数和(自身を含む): 36777780

約数和(自身を除く): 16492455

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 89, 225, 267, 445, 801, 1013, 1335, 2225, 3039, 4005, 5065, 6675, 9117, 15195, 20025, 25325, 45585, 75975, 90157, 227925, 270471, 450785, 811413, 1352355, 2253925, 4057065, 6761775, 20285325]

約数ペア:

[(1, 20285325), (3, 6761775), (5, 4057065), (9, 2253925), (15, 1352355), (25, 811413), (45, 450785), (75, 270471), (89, 227925), (225, 90157), (267, 75975), (445, 45585), (801, 25325), (1013, 20025), (1335, 15195), (2225, 9117), (3039, 6675), (4005, 5065)]