2557580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{3119}}^1$

素因数の和:3169

約数の個数: 24

約数和(自身を含む): 5503680

約数和(自身を除く): 2946100

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 3119, 6238, 12476, 15595, 31190, 62380, 127879, 255758, 511516, 639395, 1278790, 2557580]

約数ペア:

[(1, 2557580), (2, 1278790), (4, 639395), (5, 511516), (10, 255758), (20, 127879), (41, 62380), (82, 31190), (164, 15595), (205, 12476), (410, 6238), (820, 3119)]