200820820

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{461}}^1\times {\mathrm{947}}^1$

素因数の和:1440

約数の個数: 48

約数和(自身を含む): 441479808

約数和(自身を除く): 240658988

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 461, 922, 947, 1844, 1894, 2305, 3788, 4610, 4735, 9220, 9470, 10603, 18940, 21206, 21781, 42412, 43562, 53015, 87124, 106030, 108905, 212060, 217810, 435620, 436567, 873134, 1746268, 2182835, 4365670, 8731340, 10041041, 20082082, 40164164, 50205205, 100410410, 200820820]

約数ペア:

[(1, 200820820), (2, 100410410), (4, 50205205), (5, 40164164), (10, 20082082), (20, 10041041), (23, 8731340), (46, 4365670), (92, 2182835), (115, 1746268), (230, 873134), (460, 436567), (461, 435620), (922, 217810), (947, 212060), (1844, 108905), (1894, 106030), (2305, 87124), (3788, 53015), (4610, 43562), (4735, 42412), (9220, 21781), (9470, 21206), (10603, 18940)]