80528706064

素因数分解:

$2^4\times {\mathrm{25471}}^1\times {\mathrm{197599}}^1$

素因数の和:223078

約数の個数: 20

約数和(自身を含む): 156031283200

約数和(自身を除く): 75502577136

約数列:

[1, 2, 4, 8, 16, 25471, 50942, 101884, 197599, 203768, 395198, 407536, 790396, 1580792, 3161584, 5033044129, 10066088258, 20132176516, 40264353032, 80528706064]

約数ペア:

[(1, 80528706064), (2, 40264353032), (4, 20132176516), (8, 10066088258), (16, 5033044129), (25471, 3161584), (50942, 1580792), (101884, 790396), (197599, 407536), (203768, 395198)]