201221465

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{15641}}^1$

素因数の和:15760

約数の個数: 16

約数和(自身を含む): 252274176

約数和(自身を除く): 51052711

約数列:

[1, 5, 31, 83, 155, 415, 2573, 12865, 15641, 78205, 484871, 1298203, 2424355, 6491015, 40244293, 201221465]

約数ペア:

[(1, 201221465), (5, 40244293), (31, 6491015), (83, 2424355), (155, 1298203), (415, 484871), (2573, 78205), (12865, 15641)]