30788840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{7621}}^1$

素因数の和:7733

約数の個数: 32

約数和(自身を含む): 69969960

約数和(自身を除く): 39181120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 7621, 15242, 30484, 38105, 60968, 76210, 152420, 304840, 769721, 1539442, 3078884, 3848605, 6157768, 7697210, 15394420, 30788840]

約数ペア:

[(1, 30788840), (2, 15394420), (4, 7697210), (5, 6157768), (8, 3848605), (10, 3078884), (20, 1539442), (40, 769721), (101, 304840), (202, 152420), (404, 76210), (505, 60968), (808, 38105), (1010, 30484), (2020, 15242), (4040, 7621)]