20765900

素因数分解:

$2^2\times 5^2\times {\mathrm{281}}^1\times {\mathrm{739}}^1$

素因数の和:1034

約数の個数: 36

約数和(自身を含む): 45283560

約数和(自身を除く): 24517660

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 281, 562, 739, 1124, 1405, 1478, 2810, 2956, 3695, 5620, 7025, 7390, 14050, 14780, 18475, 28100, 36950, 73900, 207659, 415318, 830636, 1038295, 2076590, 4153180, 5191475, 10382950, 20765900]

約数ペア:

[(1, 20765900), (2, 10382950), (4, 5191475), (5, 4153180), (10, 2076590), (20, 1038295), (25, 830636), (50, 415318), (100, 207659), (281, 73900), (562, 36950), (739, 28100), (1124, 18475), (1405, 14780), (1478, 14050), (2810, 7390), (2956, 7025), (3695, 5620)]