99518920

素因数分解:

$2^3\times 5^1\times {\mathrm{983}}^1\times {\mathrm{2531}}^1$

素因数の和:3525

約数の個数: 32

約数和(自身を含む): 224233920

約数和(自身を除く): 124715000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 983, 1966, 2531, 3932, 4915, 5062, 7864, 9830, 10124, 12655, 19660, 20248, 25310, 39320, 50620, 101240, 2487973, 4975946, 9951892, 12439865, 19903784, 24879730, 49759460, 99518920]

約数ペア:

[(1, 99518920), (2, 49759460), (4, 24879730), (5, 19903784), (8, 12439865), (10, 9951892), (20, 4975946), (40, 2487973), (983, 101240), (1966, 50620), (2531, 39320), (3932, 25310), (4915, 20248), (5062, 19660), (7864, 12655), (9830, 10124)]