206491610

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397}}^1\times {\mathrm{4001}}^1$

素因数の和:4418

約数の個数: 32

約数和(自身を含む): 401384592

約数和(自身を除く): 194892982

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397, 794, 1985, 3970, 4001, 5161, 8002, 10322, 20005, 25805, 40010, 51610, 52013, 104026, 260065, 520130, 1588397, 3176794, 7941985, 15883970, 20649161, 41298322, 103245805, 206491610]

約数ペア:

[(1, 206491610), (2, 103245805), (5, 41298322), (10, 20649161), (13, 15883970), (26, 7941985), (65, 3176794), (130, 1588397), (397, 520130), (794, 260065), (1985, 104026), (3970, 52013), (4001, 51610), (5161, 40010), (8002, 25805), (10322, 20005)]