156637720

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{12511}}^1$

素因数の和:12835

約数の個数: 32

約数和(自身を含む): 353589120

約数和(自身を除く): 196951400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1252, 1565, 2504, 3130, 6260, 12511, 12520, 25022, 50044, 62555, 100088, 125110, 250220, 500440, 3915943, 7831886, 15663772, 19579715, 31327544, 39159430, 78318860, 156637720]

約数ペア:

[(1, 156637720), (2, 78318860), (4, 39159430), (5, 31327544), (8, 19579715), (10, 15663772), (20, 7831886), (40, 3915943), (313, 500440), (626, 250220), (1252, 125110), (1565, 100088), (2504, 62555), (3130, 50044), (6260, 25022), (12511, 12520)]