87091780

素因数分解:

$2^2\times 5^1\times {\mathrm{479}}^1\times {\mathrm{9091}}^1$

素因数の和:9579

約数の個数: 24

約数和(自身を含む): 183294720

約数和(自身を除く): 96202940

約数列:

[1, 2, 4, 5, 10, 20, 479, 958, 1916, 2395, 4790, 9091, 9580, 18182, 36364, 45455, 90910, 181820, 4354589, 8709178, 17418356, 21772945, 43545890, 87091780]

約数ペア:

[(1, 87091780), (2, 43545890), (4, 21772945), (5, 17418356), (10, 8709178), (20, 4354589), (479, 181820), (958, 90910), (1916, 45455), (2395, 36364), (4790, 18182), (9091, 9580)]