19043750

素因数分解:

$2^1\times 5^5\times {\mathrm{11}}^1\times {\mathrm{277}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 39091248

約数和(自身を除く): 20047498

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 277, 550, 554, 625, 1250, 1375, 1385, 2750, 2770, 3047, 3125, 6094, 6250, 6875, 6925, 13750, 13850, 15235, 30470, 34375, 34625, 68750, 69250, 76175, 152350, 173125, 346250, 380875, 761750, 865625, 1731250, 1904375, 3808750, 9521875, 19043750]

約数ペア:

[(1, 19043750), (2, 9521875), (5, 3808750), (10, 1904375), (11, 1731250), (22, 865625), (25, 761750), (50, 380875), (55, 346250), (110, 173125), (125, 152350), (250, 76175), (275, 69250), (277, 68750), (550, 34625), (554, 34375), (625, 30470), (1250, 15235), (1375, 13850), (1385, 13750), (2750, 6925), (2770, 6875), (3047, 6250), (3125, 6094)]