28554220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83983}}^1$

素因数の和:84009

約数の個数: 24

約数和(自身を含む): 63491904

約数和(自身を除く): 34937684

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83983, 167966, 335932, 419915, 839830, 1427711, 1679660, 2855422, 5710844, 7138555, 14277110, 28554220]

約数ペア:

[(1, 28554220), (2, 14277110), (4, 7138555), (5, 5710844), (10, 2855422), (17, 1679660), (20, 1427711), (34, 839830), (68, 419915), (85, 335932), (170, 167966), (340, 83983)]