19942300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:971

約数の個数: 72

約数和(自身を含む): 51107840

約数和(自身を除く): 31165540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 140, 155, 175, 217, 310, 350, 434, 620, 700, 775, 868, 919, 1085, 1550, 1838, 2170, 3100, 3676, 4340, 4595, 5425, 6433, 9190, 10850, 12866, 18380, 21700, 22975, 25732, 28489, 32165, 45950, 56978, 64330, 91900, 113956, 128660, 142445, 160825, 199423, 284890, 321650, 398846, 569780, 643300, 712225, 797692, 997115, 1424450, 1994230, 2848900, 3988460, 4985575, 9971150, 19942300]

約数ペア:

[(1, 19942300), (2, 9971150), (4, 4985575), (5, 3988460), (7, 2848900), (10, 1994230), (14, 1424450), (20, 997115), (25, 797692), (28, 712225), (31, 643300), (35, 569780), (50, 398846), (62, 321650), (70, 284890), (100, 199423), (124, 160825), (140, 142445), (155, 128660), (175, 113956), (217, 91900), (310, 64330), (350, 56978), (434, 45950), (620, 32165), (700, 28489), (775, 25732), (868, 22975), (919, 21700), (1085, 18380), (1550, 12866), (1838, 10850), (2170, 9190), (3100, 6433), (3676, 5425), (4340, 4595)]