80090020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{48247}}^1$

素因数の和:48339

約数の個数: 24

約数和(自身を含む): 170218944

約数和(自身を除く): 90128924

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 48247, 96494, 192988, 241235, 482470, 964940, 4004501, 8009002, 16018004, 20022505, 40045010, 80090020]

約数ペア:

[(1, 80090020), (2, 40045010), (4, 20022505), (5, 16018004), (10, 8009002), (20, 4004501), (83, 964940), (166, 482470), (332, 241235), (415, 192988), (830, 96494), (1660, 48247)]