51511375

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{23}}^2\times {\mathrm{41}}^1$

素因数の和:121

約数の個数: 48

約数和(自身を含む): 72465120

約数和(自身を除く): 20953745

約数列:

[1, 5, 19, 23, 25, 41, 95, 115, 125, 205, 437, 475, 529, 575, 779, 943, 1025, 2185, 2375, 2645, 2875, 3895, 4715, 5125, 10051, 10925, 13225, 17917, 19475, 21689, 23575, 50255, 54625, 66125, 89585, 97375, 108445, 117875, 251275, 412091, 447925, 542225, 1256375, 2060455, 2239625, 2711125, 10302275, 51511375]

約数ペア:

[(1, 51511375), (5, 10302275), (19, 2711125), (23, 2239625), (25, 2060455), (41, 1256375), (95, 542225), (115, 447925), (125, 412091), (205, 251275), (437, 117875), (475, 108445), (529, 97375), (575, 89585), (779, 66125), (943, 54625), (1025, 50255), (2185, 23575), (2375, 21689), (2645, 19475), (2875, 17917), (3895, 13225), (4715, 10925), (5125, 10051)]