2008990580

素因数分解:

$2^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{287821}}^1$

素因数の和:288179

約数の個数: 24

約数和(自身を含む): 4230983400

約数和(自身を除く): 2221992820

約数列:

[1, 2, 4, 5, 10, 20, 349, 698, 1396, 1745, 3490, 6980, 287821, 575642, 1151284, 1439105, 2878210, 5756420, 100449529, 200899058, 401798116, 502247645, 1004495290, 2008990580]

約数ペア:

[(1, 2008990580), (2, 1004495290), (4, 502247645), (5, 401798116), (10, 200899058), (20, 100449529), (349, 5756420), (698, 2878210), (1396, 1439105), (1745, 1151284), (3490, 575642), (6980, 287821)]