20950600

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 54237600

約数和(自身を除く): 33287000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 89, 100, 107, 110, 178, 200, 214, 220, 275, 356, 428, 440, 445, 535, 550, 712, 856, 890, 979, 1070, 1100, 1177, 1780, 1958, 2140, 2200, 2225, 2354, 2675, 3560, 3916, 4280, 4450, 4708, 4895, 5350, 5885, 7832, 8900, 9416, 9523, 9790, 10700, 11770, 17800, 19046, 19580, 21400, 23540, 24475, 29425, 38092, 39160, 47080, 47615, 48950, 58850, 76184, 95230, 97900, 104753, 117700, 190460, 195800, 209506, 235400, 238075, 380920, 419012, 476150, 523765, 838024, 952300, 1047530, 1904600, 2095060, 2618825, 4190120, 5237650, 10475300, 20950600]

約数ペア:

[(1, 20950600), (2, 10475300), (4, 5237650), (5, 4190120), (8, 2618825), (10, 2095060), (11, 1904600), (20, 1047530), (22, 952300), (25, 838024), (40, 523765), (44, 476150), (50, 419012), (55, 380920), (88, 238075), (89, 235400), (100, 209506), (107, 195800), (110, 190460), (178, 117700), (200, 104753), (214, 97900), (220, 95230), (275, 76184), (356, 58850), (428, 48950), (440, 47615), (445, 47080), (535, 39160), (550, 38092), (712, 29425), (856, 24475), (890, 23540), (979, 21400), (1070, 19580), (1100, 19046), (1177, 17800), (1780, 11770), (1958, 10700), (2140, 9790), (2200, 9523), (2225, 9416), (2354, 8900), (2675, 7832), (3560, 5885), (3916, 5350), (4280, 4895), (4450, 4708)]