20556500

素因数分解:

$2^2\times 5^3\times {\mathrm{41113}}^1$

素因数の和:41132

約数の個数: 24

約数和(自身を含む): 44896488

約数和(自身を除く): 24339988

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 41113, 82226, 164452, 205565, 411130, 822260, 1027825, 2055650, 4111300, 5139125, 10278250, 20556500]

約数ペア:

[(1, 20556500), (2, 10278250), (4, 5139125), (5, 4111300), (10, 2055650), (20, 1027825), (25, 822260), (50, 411130), (100, 205565), (125, 164452), (250, 82226), (500, 41113)]