20194677320

素因数分解:

$2^3\times 5^1\times {\mathrm{1087}}^1\times {\mathrm{464459}}^1$

素因数の和:465557

約数の個数: 32

約数和(自身を含む): 45479923200

約数和(自身を除く): 25285245880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1087, 2174, 4348, 5435, 8696, 10870, 21740, 43480, 464459, 928918, 1857836, 2322295, 3715672, 4644590, 9289180, 18578360, 504866933, 1009733866, 2019467732, 2524334665, 4038935464, 5048669330, 10097338660, 20194677320]

約数ペア:

[(1, 20194677320), (2, 10097338660), (4, 5048669330), (5, 4038935464), (8, 2524334665), (10, 2019467732), (20, 1009733866), (40, 504866933), (1087, 18578360), (2174, 9289180), (4348, 4644590), (5435, 3715672), (8696, 2322295), (10870, 1857836), (21740, 928918), (43480, 464459)]