20165425

素因数分解:

$5^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{829}}^1$

素因数の和:985

約数の個数: 24

約数和(自身を含む): 28817600

約数和(自身を除く): 8652175

約数列:

[1, 5, 7, 25, 35, 139, 175, 695, 829, 973, 3475, 4145, 4865, 5803, 20725, 24325, 29015, 115231, 145075, 576155, 806617, 2880775, 4033085, 20165425]

約数ペア:

[(1, 20165425), (5, 4033085), (7, 2880775), (25, 806617), (35, 576155), (139, 145075), (175, 115231), (695, 29015), (829, 24325), (973, 20725), (3475, 5803), (4145, 4865)]