19648750

素因数分解:

$2^1\times 5^4\times {\mathrm{11}}^1\times {\mathrm{1429}}^1$

素因数の和:1462

約数の個数: 40

約数和(自身を含む): 40205880

約数和(自身を除く): 20557130

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 625, 1250, 1375, 1429, 2750, 2858, 6875, 7145, 13750, 14290, 15719, 31438, 35725, 71450, 78595, 157190, 178625, 357250, 392975, 785950, 893125, 1786250, 1964875, 3929750, 9824375, 19648750]

約数ペア:

[(1, 19648750), (2, 9824375), (5, 3929750), (10, 1964875), (11, 1786250), (22, 893125), (25, 785950), (50, 392975), (55, 357250), (110, 178625), (125, 157190), (250, 78595), (275, 71450), (550, 35725), (625, 31438), (1250, 15719), (1375, 14290), (1429, 13750), (2750, 7145), (2858, 6875)]