20199990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1607}}^1$

素因数の和:2036

約数の個数: 32

約数和(自身を含む): 48625920

約数和(自身を除く): 28425930

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 419, 838, 1257, 1607, 2095, 2514, 3214, 4190, 4821, 6285, 8035, 9642, 12570, 16070, 24105, 48210, 673333, 1346666, 2019999, 3366665, 4039998, 6733330, 10099995, 20199990]

約数ペア:

[(1, 20199990), (2, 10099995), (3, 6733330), (5, 4039998), (6, 3366665), (10, 2019999), (15, 1346666), (30, 673333), (419, 48210), (838, 24105), (1257, 16070), (1607, 12570), (2095, 9642), (2514, 8035), (3214, 6285), (4190, 4821)]