280749020

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{452821}}^1$

素因数の和:452861

約数の個数: 24

約数和(自身を含む): 608592768

約数和(自身を除く): 327843748

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 452821, 905642, 1811284, 2264105, 4528210, 9056420, 14037451, 28074902, 56149804, 70187255, 140374510, 280749020]

約数ペア:

[(1, 280749020), (2, 140374510), (4, 70187255), (5, 56149804), (10, 28074902), (20, 14037451), (31, 9056420), (62, 4528210), (124, 2264105), (155, 1811284), (310, 905642), (620, 452821)]