18534500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{1951}}^1$

素因数の和:1989

約数の個数: 48

約数和(自身を含む): 42631680

約数和(自身を除く): 24097180

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 1951, 2375, 3902, 4750, 7804, 9500, 9755, 19510, 37069, 39020, 48775, 74138, 97550, 148276, 185345, 195100, 243875, 370690, 487750, 741380, 926725, 975500, 1853450, 3706900, 4633625, 9267250, 18534500]

約数ペア:

[(1, 18534500), (2, 9267250), (4, 4633625), (5, 3706900), (10, 1853450), (19, 975500), (20, 926725), (25, 741380), (38, 487750), (50, 370690), (76, 243875), (95, 195100), (100, 185345), (125, 148276), (190, 97550), (250, 74138), (380, 48775), (475, 39020), (500, 37069), (950, 19510), (1900, 9755), (1951, 9500), (2375, 7804), (3902, 4750)]