19988021210

素因数分解:

$2^1\times 5^1\times {\mathrm{739}}^1\times {\mathrm{2704739}}^1$

素因数の和:2705485

約数の個数: 16

約数和(自身を含む): 36027136800

約数和(自身を除く): 16039115590

約数列:

[1, 2, 5, 10, 739, 1478, 3695, 7390, 2704739, 5409478, 13523695, 27047390, 1998802121, 3997604242, 9994010605, 19988021210]

約数ペア:

[(1, 19988021210), (2, 9994010605), (5, 3997604242), (10, 1998802121), (739, 27047390), (1478, 13523695), (3695, 5409478), (7390, 2704739)]