20177800

素因数分解:

$2^3\times 5^2\times {\mathrm{233}}^1\times {\mathrm{433}}^1$

素因数の和:682

約数の個数: 48

約数和(自身を含む): 47223540

約数和(自身を除く): 27045740

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 233, 433, 466, 866, 932, 1165, 1732, 1864, 2165, 2330, 3464, 4330, 4660, 5825, 8660, 9320, 10825, 11650, 17320, 21650, 23300, 43300, 46600, 86600, 100889, 201778, 403556, 504445, 807112, 1008890, 2017780, 2522225, 4035560, 5044450, 10088900, 20177800]

約数ペア:

[(1, 20177800), (2, 10088900), (4, 5044450), (5, 4035560), (8, 2522225), (10, 2017780), (20, 1008890), (25, 807112), (40, 504445), (50, 403556), (100, 201778), (200, 100889), (233, 86600), (433, 46600), (466, 43300), (866, 23300), (932, 21650), (1165, 17320), (1732, 11650), (1864, 10825), (2165, 9320), (2330, 8660), (3464, 5825), (4330, 4660)]