817884020

素因数分解:

$2^2\times 5^1\times {\mathrm{1913}}^1\times {\mathrm{21377}}^1$

素因数の和:23299

約数の個数: 24

約数和(自身を含む): 1718534664

約数和(自身を除く): 900650644

約数列:

[1, 2, 4, 5, 10, 20, 1913, 3826, 7652, 9565, 19130, 21377, 38260, 42754, 85508, 106885, 213770, 427540, 40894201, 81788402, 163576804, 204471005, 408942010, 817884020]

約数ペア:

[(1, 817884020), (2, 408942010), (4, 204471005), (5, 163576804), (10, 81788402), (20, 40894201), (1913, 427540), (3826, 213770), (7652, 106885), (9565, 85508), (19130, 42754), (21377, 38260)]