209465762810

素因数分解:

$2^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{40204561}}^1$

素因数の和:40205089

約数の個数: 16

約数和(自身を含む): 377762064552

約数和(自身を除く): 168296301742

約数列:

[1, 2, 5, 10, 521, 1042, 2605, 5210, 40204561, 80409122, 201022805, 402045610, 20946576281, 41893152562, 104732881405, 209465762810]

約数ペア:

[(1, 209465762810), (2, 104732881405), (5, 41893152562), (10, 20946576281), (521, 402045610), (1042, 201022805), (2605, 80409122), (5210, 40204561)]