25652720

素因数分解:

$2^4\times 5^1\times {\mathrm{320659}}^1$

素因数の和:320672

約数の個数: 20

約数和(自身を含む): 59642760

約数和(自身を除く): 33990040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320659, 641318, 1282636, 1603295, 2565272, 3206590, 5130544, 6413180, 12826360, 25652720]

約数ペア:

[(1, 25652720), (2, 12826360), (4, 6413180), (5, 5130544), (8, 3206590), (10, 2565272), (16, 1603295), (20, 1282636), (40, 641318), (80, 320659)]