81792140

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{269}}^1\times {\mathrm{661}}^1$

素因数の和:962

約数の個数: 48

約数和(自身を含む): 180169920

約数和(自身を除く): 98377780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 269, 460, 538, 661, 1076, 1322, 1345, 2644, 2690, 3305, 5380, 6187, 6610, 12374, 13220, 15203, 24748, 30406, 30935, 60812, 61870, 76015, 123740, 152030, 177809, 304060, 355618, 711236, 889045, 1778090, 3556180, 4089607, 8179214, 16358428, 20448035, 40896070, 81792140]

約数ペア:

[(1, 81792140), (2, 40896070), (4, 20448035), (5, 16358428), (10, 8179214), (20, 4089607), (23, 3556180), (46, 1778090), (92, 889045), (115, 711236), (230, 355618), (269, 304060), (460, 177809), (538, 152030), (661, 123740), (1076, 76015), (1322, 61870), (1345, 60812), (2644, 30935), (2690, 30406), (3305, 24748), (5380, 15203), (6187, 13220), (6610, 12374)]