161778005

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{431}}^1\times {\mathrm{1831}}^1$

素因数の和:2308

約数の個数: 16

約数和(自身を含む): 199438848

約数和(自身を除く): 37660843

約数列:

[1, 5, 41, 205, 431, 1831, 2155, 9155, 17671, 75071, 88355, 375355, 789161, 3945805, 32355601, 161778005]

約数ペア:

[(1, 161778005), (5, 32355601), (41, 3945805), (205, 789161), (431, 375355), (1831, 88355), (2155, 75071), (9155, 17671)]