202178420

素因数分解:

$2^2\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{9901}}^1$

素因数の和:10931

約数の個数: 24

約数和(自身を含む): 425033448

約数和(自身を除く): 222855028

約数列:

[1, 2, 4, 5, 10, 20, 1021, 2042, 4084, 5105, 9901, 10210, 19802, 20420, 39604, 49505, 99010, 198020, 10108921, 20217842, 40435684, 50544605, 101089210, 202178420]

約数ペア:

[(1, 202178420), (2, 101089210), (4, 50544605), (5, 40435684), (10, 20217842), (20, 10108921), (1021, 198020), (2042, 99010), (4084, 49505), (5105, 39604), (9901, 20420), (10210, 19802)]