199922420

素因数分解:

$2^2\times 5^1\times {\mathrm{2213}}^1\times {\mathrm{4517}}^1$

素因数の和:6739

約数の個数: 24

約数和(自身を含む): 420119784

約数和(自身を除く): 220197364

約数列:

[1, 2, 4, 5, 10, 20, 2213, 4426, 4517, 8852, 9034, 11065, 18068, 22130, 22585, 44260, 45170, 90340, 9996121, 19992242, 39984484, 49980605, 99961210, 199922420]

約数ペア:

[(1, 199922420), (2, 99961210), (4, 49980605), (5, 39984484), (10, 19992242), (20, 9996121), (2213, 90340), (4426, 45170), (4517, 44260), (8852, 22585), (9034, 22130), (11065, 18068)]