205816990

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{49121}}^1$

素因数の和:49547

約数の個数: 16

約数和(自身を含む): 371362320

約数和(自身を除く): 165545330

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 49121, 98242, 245605, 491210, 20581699, 41163398, 102908495, 205816990]

約数ペア:

[(1, 205816990), (2, 102908495), (5, 41163398), (10, 20581699), (419, 491210), (838, 245605), (2095, 98242), (4190, 49121)]