199255820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{140321}}^1$

素因数の和:140401

約数の個数: 24

約数和(自身を含む): 424333728

約数和(自身を除く): 225077908

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 140321, 280642, 561284, 701605, 1403210, 2806420, 9962791, 19925582, 39851164, 49813955, 99627910, 199255820]

約数ペア:

[(1, 199255820), (2, 99627910), (4, 49813955), (5, 39851164), (10, 19925582), (20, 9962791), (71, 2806420), (142, 1403210), (284, 701605), (355, 561284), (710, 280642), (1420, 140321)]