804929805

素因数分解:

$3^4\times 5^1\times {\mathrm{1987481}}^1$

素因数の和:1987498

約数の個数: 20

約数和(自身を含む): 1442911932

約数和(自身を除く): 637982127

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 1987481, 5962443, 9937405, 17887329, 29812215, 53661987, 89436645, 160985961, 268309935, 804929805]

約数ペア:

[(1, 804929805), (3, 268309935), (5, 160985961), (9, 89436645), (15, 53661987), (27, 29812215), (45, 17887329), (81, 9937405), (135, 5962443), (405, 1987481)]