2051249500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{215921}}^1$

素因数の和:215959

約数の個数: 48

約数和(自身を含む): 4715736480

約数和(自身を除く): 2664486980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 950, 1900, 2375, 4750, 9500, 215921, 431842, 863684, 1079605, 2159210, 4102499, 4318420, 5398025, 8204998, 10796050, 16409996, 20512495, 21592100, 26990125, 41024990, 53980250, 82049980, 102562475, 107960500, 205124950, 410249900, 512812375, 1025624750, 2051249500]

約数ペア:

[(1, 2051249500), (2, 1025624750), (4, 512812375), (5, 410249900), (10, 205124950), (19, 107960500), (20, 102562475), (25, 82049980), (38, 53980250), (50, 41024990), (76, 26990125), (95, 21592100), (100, 20512495), (125, 16409996), (190, 10796050), (250, 8204998), (380, 5398025), (475, 4318420), (500, 4102499), (950, 2159210), (1900, 1079605), (2375, 863684), (4750, 431842), (9500, 215921)]