20918075

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{593}}^1$

素因数の和:703

約数の個数: 24

約数和(自身を含む): 27841968

約数和(自身を除く): 6923893

約数列:

[1, 5, 17, 25, 83, 85, 415, 425, 593, 1411, 2075, 2965, 7055, 10081, 14825, 35275, 49219, 50405, 246095, 252025, 836723, 1230475, 4183615, 20918075]

約数ペア:

[(1, 20918075), (5, 4183615), (17, 1230475), (25, 836723), (83, 252025), (85, 246095), (415, 50405), (425, 49219), (593, 35275), (1411, 14825), (2075, 10081), (2965, 7055)]