2009744540

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{421}}^1\times {\mathrm{6451}}^1$

素因数の和:6918

約数の個数: 48

約数和(自身を含む): 4345499424

約数和(自身を除く): 2335754884

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 421, 740, 842, 1684, 2105, 4210, 6451, 8420, 12902, 15577, 25804, 31154, 32255, 62308, 64510, 77885, 129020, 155770, 238687, 311540, 477374, 954748, 1193435, 2386870, 2715871, 4773740, 5431742, 10863484, 13579355, 27158710, 54317420, 100487227, 200974454, 401948908, 502436135, 1004872270, 2009744540]

約数ペア:

[(1, 2009744540), (2, 1004872270), (4, 502436135), (5, 401948908), (10, 200974454), (20, 100487227), (37, 54317420), (74, 27158710), (148, 13579355), (185, 10863484), (370, 5431742), (421, 4773740), (740, 2715871), (842, 2386870), (1684, 1193435), (2105, 954748), (4210, 477374), (6451, 311540), (8420, 238687), (12902, 155770), (15577, 129020), (25804, 77885), (31154, 64510), (32255, 62308)]