18837500

素因数分解:

$2^2\times 5^5\times {\mathrm{11}}^1\times {\mathrm{137}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 45278352

約数和(自身を除く): 26440852

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 125, 137, 220, 250, 274, 275, 500, 548, 550, 625, 685, 1100, 1250, 1370, 1375, 1507, 2500, 2740, 2750, 3014, 3125, 3425, 5500, 6028, 6250, 6850, 6875, 7535, 12500, 13700, 13750, 15070, 17125, 27500, 30140, 34250, 34375, 37675, 68500, 68750, 75350, 85625, 137500, 150700, 171250, 188375, 342500, 376750, 428125, 753500, 856250, 941875, 1712500, 1883750, 3767500, 4709375, 9418750, 18837500]

約数ペア:

[(1, 18837500), (2, 9418750), (4, 4709375), (5, 3767500), (10, 1883750), (11, 1712500), (20, 941875), (22, 856250), (25, 753500), (44, 428125), (50, 376750), (55, 342500), (100, 188375), (110, 171250), (125, 150700), (137, 137500), (220, 85625), (250, 75350), (274, 68750), (275, 68500), (500, 37675), (548, 34375), (550, 34250), (625, 30140), (685, 27500), (1100, 17125), (1250, 15070), (1370, 13750), (1375, 13700), (1507, 12500), (2500, 7535), (2740, 6875), (2750, 6850), (3014, 6250), (3125, 6028), (3425, 5500)]