201638980

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{97883}}^1$

素因数の和:97995

約数の個数: 24

約数和(自身を含む): 427557312

約数和(自身を除く): 225918332

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 97883, 195766, 391532, 489415, 978830, 1957660, 10081949, 20163898, 40327796, 50409745, 100819490, 201638980]

約数ペア:

[(1, 201638980), (2, 100819490), (4, 50409745), (5, 40327796), (10, 20163898), (20, 10081949), (103, 1957660), (206, 978830), (412, 489415), (515, 391532), (1030, 195766), (2060, 97883)]