64539820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{189823}}^1$

素因数の和:189849

約数の個数: 24

約数和(自身を含む): 143506944

約数和(自身を除く): 78967124

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 189823, 379646, 759292, 949115, 1898230, 3226991, 3796460, 6453982, 12907964, 16134955, 32269910, 64539820]

約数ペア:

[(1, 64539820), (2, 32269910), (4, 16134955), (5, 12907964), (10, 6453982), (17, 3796460), (20, 3226991), (34, 1898230), (68, 949115), (85, 759292), (170, 379646), (340, 189823)]