80909320

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{7691}}^1$

素因数の和:7965

約数の個数: 32

約数和(自身を含む): 182761920

約数和(自身を除く): 101852600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 7691, 10520, 15382, 30764, 38455, 61528, 76910, 153820, 307640, 2022733, 4045466, 8090932, 10113665, 16181864, 20227330, 40454660, 80909320]

約数ペア:

[(1, 80909320), (2, 40454660), (4, 20227330), (5, 16181864), (8, 10113665), (10, 8090932), (20, 4045466), (40, 2022733), (263, 307640), (526, 153820), (1052, 76910), (1315, 61528), (2104, 38455), (2630, 30764), (5260, 15382), (7691, 10520)]