51565720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{11827}}^1$

素因数の和:11947

約数の個数: 32

約数和(自身を含む): 117097200

約数和(自身を除く): 65531480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 11827, 23654, 47308, 59135, 94616, 118270, 236540, 473080, 1289143, 2578286, 5156572, 6445715, 10313144, 12891430, 25782860, 51565720]

約数ペア:

[(1, 51565720), (2, 25782860), (4, 12891430), (5, 10313144), (8, 6445715), (10, 5156572), (20, 2578286), (40, 1289143), (109, 473080), (218, 236540), (436, 118270), (545, 94616), (872, 59135), (1090, 47308), (2180, 23654), (4360, 11827)]