18770154625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{709}}^1$

素因数の和:971

約数の個数: 64

約数和(自身を含む): 25200115200

約数和(自身を除く): 6429960575

約数列:

[1, 5, 19, 25, 71, 95, 125, 157, 355, 475, 709, 785, 1349, 1775, 2375, 2983, 3545, 3925, 6745, 8875, 11147, 13471, 14915, 17725, 19625, 33725, 50339, 55735, 67355, 74575, 88625, 111313, 168625, 211793, 251695, 278675, 336775, 372875, 556565, 956441, 1058965, 1258475, 1393375, 1683875, 2114947, 2782825, 4782205, 5294825, 6292375, 7903223, 10574735, 13914125, 23911025, 26474125, 39516115, 52873675, 119555125, 150161237, 197580575, 264368375, 750806185, 987902875, 3754030925, 18770154625]

約数ペア:

[(1, 18770154625), (5, 3754030925), (19, 987902875), (25, 750806185), (71, 264368375), (95, 197580575), (125, 150161237), (157, 119555125), (355, 52873675), (475, 39516115), (709, 26474125), (785, 23911025), (1349, 13914125), (1775, 10574735), (2375, 7903223), (2983, 6292375), (3545, 5294825), (3925, 4782205), (6745, 2782825), (8875, 2114947), (11147, 1683875), (13471, 1393375), (14915, 1258475), (17725, 1058965), (19625, 956441), (33725, 556565), (50339, 372875), (55735, 336775), (67355, 278675), (74575, 251695), (88625, 211793), (111313, 168625)]