20174840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{72053}}^1$

素因数の和:72071

約数の個数: 32

約数和(自身を含む): 51878880

約数和(自身を除く): 31704040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 72053, 144106, 288212, 360265, 504371, 576424, 720530, 1008742, 1441060, 2017484, 2521855, 2882120, 4034968, 5043710, 10087420, 20174840]

約数ペア:

[(1, 20174840), (2, 10087420), (4, 5043710), (5, 4034968), (7, 2882120), (8, 2521855), (10, 2017484), (14, 1441060), (20, 1008742), (28, 720530), (35, 576424), (40, 504371), (56, 360265), (70, 288212), (140, 144106), (280, 72053)]