990020

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{839}}^1$

素因数の和:907

約数の個数: 24

約数和(自身を含む): 2116800

約数和(自身を除く): 1126780

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 839, 1180, 1678, 3356, 4195, 8390, 16780, 49501, 99002, 198004, 247505, 495010, 990020]

約数ペア:

[(1, 990020), (2, 495010), (4, 247505), (5, 198004), (10, 99002), (20, 49501), (59, 16780), (118, 8390), (236, 4195), (295, 3356), (590, 1678), (839, 1180)]