25590640

素因数分解:

$2^4\times 5^1\times {\mathrm{319883}}^1$

素因数の和:319896

約数の個数: 20

約数和(自身を含む): 59498424

約数和(自身を除く): 33907784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 319883, 639766, 1279532, 1599415, 2559064, 3198830, 5118128, 6397660, 12795320, 25590640]

約数ペア:

[(1, 25590640), (2, 12795320), (4, 6397660), (5, 5118128), (8, 3198830), (10, 2559064), (16, 1599415), (20, 1279532), (40, 639766), (80, 319883)]