20960020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25561}}^1$

素因数の和:25611

約数の個数: 24

約数和(自身を含む): 45091368

約数和(自身を除く): 24131348

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25561, 51122, 102244, 127805, 255610, 511220, 1048001, 2096002, 4192004, 5240005, 10480010, 20960020]

約数ペア:

[(1, 20960020), (2, 10480010), (4, 5240005), (5, 4192004), (10, 2096002), (20, 1048001), (41, 511220), (82, 255610), (164, 127805), (205, 102244), (410, 51122), (820, 25561)]