20191808510

素因数分解:

$2^1\times 5^1\times {\mathrm{9931}}^1\times {\mathrm{203321}}^1$

素因数の和:213259

約数の個数: 16

約数和(自身を含む): 36349093872

約数和(自身を除く): 16157285362

約数列:

[1, 2, 5, 10, 9931, 19862, 49655, 99310, 203321, 406642, 1016605, 2033210, 2019180851, 4038361702, 10095904255, 20191808510]

約数ペア:

[(1, 20191808510), (2, 10095904255), (5, 4038361702), (10, 2019180851), (9931, 2033210), (19862, 1016605), (49655, 406642), (99310, 203321)]